[chore] Remove conditional statement on metrics.go.tmpl NewMetricsBui…

…lder [open-telemetry#12402]

.chloggen/fix_cmd_mdata-gen-metrics.yml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: mdatagen
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Fix mdatagen generated_metrics for components other than Receiver and Scraper
+
+# One or more tracking issues or pull requests related to the change
+issues: [12402]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [api]

cmd/mdatagen/internal/templates/metrics.go.tmpl

@@ -161,9 +161,7 @@ func WithStartTime(startTime pcommon.Timestamp) MetricBuilderOption {
 	})
 }
 
-{{- if or isReceiver isScraper }}
 func NewMetricsBuilder(mbc MetricsBuilderConfig, settings {{ .Status.Class }}.Settings, options ...MetricBuilderOption) *MetricsBuilder {
-{{- end }}
 	{{- range $name, $metric := .Metrics }}
 	{{- if $metric.Warnings.IfEnabled }}
 	if mbc.Metrics.{{ $name.Render }}.Enabled {