diff --git a/probe_scraper/glean_checks.py b/probe_scraper/glean_checks.py
index f7048bef..47b523d4 100644
--- a/probe_scraper/glean_checks.py
+++ b/probe_scraper/glean_checks.py
@@ -16,148 +16,6 @@
 
 from .scrapers.git_scraper import Commit
 
-# Ugly hack to skip certain metrics which we know aren't duplicated,
-# but show up duplicated due to them being moved from one
-# to the other application/library.
-SKIP_METRICS = {
-    "gecko.version": ["gecko", "pine", "firefox-desktop"],
-    "gecko.build_id": ["gecko", "pine", "firefox-desktop"],
-    "broken_site_report.breakage_category": ["gecko", "fenix", "firefox-desktop"],
-    "broken_site_report.description": ["gecko", "fenix", "firefox-desktop"],
-    "broken_site_report.url": ["gecko", "fenix", "firefox-desktop"],
-    "broken_site_report.browser_info.app.default_locales": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.app.default_useragent_string": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.app.fission_enabled": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.device_pixel_ratio": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.devices_json": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.drivers_json": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.features_json": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.has_touch_screen": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.graphics.monitors_json": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.cookie_behavior": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.global_privacy_control_enabled": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.installtrigger_enabled": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.opaque_response_blocking": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.resist_fingerprinting_enabled": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.prefs.software_webrender": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.browser_info.system.memory": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.languages": ["gecko", "fenix", "firefox-desktop"],
-    "broken_site_report.tab_info.useragent_string": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.block_list": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.btp_has_purged_site": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.has_mixed_active_content_blocked": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.has_mixed_display_content_blocked": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.has_tracking_content_blocked": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.antitracking.is_private_browsing": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.frameworks.fastclick": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.frameworks.marfeel": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-    "broken_site_report.tab_info.frameworks.mobify": [
-        "gecko",
-        "fenix",
-        "firefox-desktop",
-    ],
-}
-
 
 def _metric_sort_key(metric: Dict[str, Any]):
     return (
@@ -281,24 +139,6 @@ def check_for_duplicate_metrics(repositories, metrics_by_repo, emails):
 
         duplicate_sources = {}
         for k, v in metric_sources.items():
-            # Exempt cases when one of the sources is Geckoview Streaming to
-            # avoid false positive duplication accross app channels.
-            # Temporarily exempt cases when one of the sources is server compat library
-            # to avoid raising alarm for metrics defined in fxa's custom ping.
-            v = [
-                dep
-                for dep in v
-                if (
-                    "engine-gecko" not in dep
-                    and "glean-server-metrics-compat" not in dep
-                )
-            ]
-
-            if k in SKIP_METRICS.keys():
-                potential_deps = SKIP_METRICS[k]
-                if any([dep for dep in potential_deps if dep in v]):
-                    continue
-
             if len(v) > 1:
                 duplicate_sources[k] = v
 
diff --git a/repositories.yaml b/repositories.yaml
index 8e6fc182..6473f5c0 100644
--- a/repositories.yaml
+++ b/repositories.yaml
@@ -93,23 +93,6 @@ libraries:
     variants:
       - v1_name: sync
         dependency_name: org.mozilla.appservices:syncmanager
-  - library_name: engine-gecko
-    description: GeckoView metrics
-    notification_emails:
-      - aplacitelli@mozilla.com
-      - android-components-team@mozilla.com
-      - geckoview-team@mozilla.com
-    url: https://github.com/mozilla/gecko-dev
-    metrics_files: []
-    variants:
-      - v1_name: engine-gecko
-        branch: release
-        dependency_name: org.mozilla.components:browser-engine-gecko
-      - v1_name: engine-gecko-beta
-        branch: beta
-        dependency_name: org.mozilla.components:browser-engine-gecko-beta
-      - v1_name: engine-gecko-nightly
-        dependency_name: org.mozilla.components:browser-engine-gecko-nightly
 
   - library_name: logins-store
     description: >-
@@ -722,22 +705,16 @@ applications:
       - v1_name: firefox-android-release
         app_id: org.mozilla.firefox
         app_channel: release
-        additional_dependencies:
-          - org.mozilla.components:browser-engine-gecko
         description: >-
           Release channel of Firefox for Android.
       - v1_name: firefox-android-beta
         app_id: org.mozilla.firefox_beta
         app_channel: beta
-        additional_dependencies:
-          - org.mozilla.components:browser-engine-gecko-beta
         description: >-
           Beta channel of Firefox for Android.
       - v1_name: fenix
         app_id: org.mozilla.fenix
         app_channel: nightly
-        additional_dependencies:
-          - org.mozilla.components:browser-engine-gecko-beta
         description: >-
           Nightly channel of Firefox for Android.
           Prior to June 2020, this app_id was used for the beta channel
@@ -745,15 +722,11 @@ applications:
       - v1_name: fenix-nightly
         app_id: org.mozilla.fenix.nightly
         app_channel: nightly
-        additional_dependencies:
-          - org.mozilla.components:browser-engine-gecko-nightly
         description: >-
           Nightly channel of Firefox Preview.
       - v1_name: firefox-android-nightly
         app_id: org.mozilla.fennec.aurora
         app_channel: nightly
-        additional_dependencies:
-          - org.mozilla.components:browser-engine-gecko-beta
         description: >-
           Nightly channel of Firefox for Android users migrated to Fenix;
           delisted in June 2020.