Remove obsolete METADATA_VARIANT* constants

Author: mgorny

variantlib/constants.py

@@ -23,28 +23,6 @@
 VARIANTS_JSON_SCHEMA_URL = "https://variants-schema.wheelnext.dev/"
 VARIANTS_JSON_VARIANT_DATA_KEY = "variants"
 
-# fmt: off
-METADATA_VARIANT_HASH_HEADER = "Variant-Hash"
-METADATA_VARIANT_PROPERTY_HEADER = "Variant-Property"
-METADATA_VARIANT_DEFAULT_PRIO_FEATURE_HEADER = "Variant-Default-Feature-Priorities"
-METADATA_VARIANT_DEFAULT_PRIO_NAMESPACE_HEADER = "Variant-Default-Namespace-Priorities"
-METADATA_VARIANT_DEFAULT_PRIO_PROPERTY_HEADER = "Variant-Default-Property-Priorities"
-METADATA_VARIANT_PROVIDER_ENABLE_IF_HEADER = "Variant-Enable-If"
-METADATA_VARIANT_PROVIDER_PLUGIN_API_HEADER = "Variant-Plugin-API"
-METADATA_VARIANT_PROVIDER_REQUIRES_HEADER = "Variant-Requires"
-# fmt: on
-
-METADATA_ALL_HEADERS = (
-    METADATA_VARIANT_HASH_HEADER,
-    METADATA_VARIANT_PROPERTY_HEADER,
-    METADATA_VARIANT_DEFAULT_PRIO_FEATURE_HEADER,
-    METADATA_VARIANT_DEFAULT_PRIO_NAMESPACE_HEADER,
-    METADATA_VARIANT_DEFAULT_PRIO_PROPERTY_HEADER,
-    METADATA_VARIANT_PROVIDER_ENABLE_IF_HEADER,
-    METADATA_VARIANT_PROVIDER_PLUGIN_API_HEADER,
-    METADATA_VARIANT_PROVIDER_REQUIRES_HEADER,
-)
-
 VALIDATION_VARIANT_HASH_REGEX = re.compile(rf"[0-9a-f]{{{VARIANT_HASH_LEN}}}")
 VALIDATION_NAMESPACE_REGEX = re.compile(r"[a-z0-9_]+")
 VALIDATION_FEATURE_NAME_REGEX = re.compile(r"[a-z0-9_]+")