Mark confmap.expandEnabled as stable (#7323)

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

.chloggen/stableexpandEnabled.yaml

@@ -0,0 +1,11 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: confmap
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Mark `confmap.expandEnabled` as stable
+
+# One or more tracking issues or pull requests related to the change
+issues: [7323]

confmap/resolver.go

@@ -47,10 +47,10 @@ var (
 	errTooManyRecursiveExpansions = errors.New("too many recursive expansions")
 )
 
-// TODO: Remove this if by v0.64.0 no complains from distros.
-var expandEnabledGauge = featuregate.GlobalRegistry().MustRegister(
+var _ = featuregate.GlobalRegistry().MustRegister(
 	"confmap.expandEnabled",
-	featuregate.StageBeta,
+	featuregate.StageStable,
+	featuregate.WithRegisterRemovalVersion("v0.75.0"),
 	featuregate.WithRegisterDescription("controls whether expanding embedded external config providers URIs"))
 
 // Resolver resolves a configuration as a Conf.
@@ -165,17 +165,15 @@ func (mr *Resolver) Resolve(ctx context.Context) (*Conf, error) {
 		}
 	}
 
-	if expandEnabledGauge.IsEnabled() {
-		cfgMap := make(map[string]any)
-		for _, k := range retMap.AllKeys() {
-			val, err := mr.expandValueRecursively(ctx, retMap.Get(k))
-			if err != nil {
-				return nil, err
-			}
-			cfgMap[k] = val
+	cfgMap := make(map[string]any)
+	for _, k := range retMap.AllKeys() {
+		val, err := mr.expandValueRecursively(ctx, retMap.Get(k))
+		if err != nil {
+			return nil, err
 		}
-		retMap = NewFromStringMap(cfgMap)
+		cfgMap[k] = val
 	}
+	retMap = NewFromStringMap(cfgMap)
 
 	// Apply the converters in the given order.
 	for _, confConv := range mr.converters {