[pkg/ottl] set `processor.transform.ConvertBetweenSumAndGaugeMetricCo…

…ntext` as stable (open-telemetry#36216)

#### Description

Set the `processor.transform.ConvertBetweenSumAndGaugeMetricContext`
feature gate as stable

#### Link to tracking issue
Fixes
open-telemetry#34567

---------

Co-authored-by: Evan Bradley <[email protected]>

.chloggen/transform-set-stable-gate.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: pkg/ottl
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Promote `processor.transform.ConvertBetweenSumAndGaugeMetricContext` feature gate to Stable
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [36216]
+
+# (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: This gate can no longer be disabled. The `convert_sum_to_gauge` and `convert_gauge_to_sum` may now only be used with the `metric` context.
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# 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: []

processor/transformprocessor/config.go

@@ -49,10 +49,6 @@ var _ component.Config = (*Config)(nil)
 func (c *Config) Validate() error {
 	var errors error
 
-	if c.logger != nil && metrics.UseConvertBetweenSumAndGaugeMetricContext.IsEnabled() {
-		c.logger.Sugar().Infof("Metric conversion functions use metric context since %s is enabled. If your statements are not parsing, check if you're using the metrics conversion functions via the datapoint context.", metrics.UseConvertBetweenSumAndGaugeMetricContext.ID())
-	}
-
 	if len(c.TraceStatements) > 0 {
 		pc, err := common.NewTraceParserCollection(component.TelemetrySettings{Logger: zap.NewNop()}, common.WithSpanParser(traces.SpanFunctions()), common.WithSpanEventParser(traces.SpanEventFunctions()))
 		if err != nil {

processor/transformprocessor/go.mod

@@ -3,7 +3,6 @@ module github.com/open-telemetry/opentelemetry-collector-contrib/processor/trans
 go 1.22.0
 
 require (
-	github.com/open-telemetry/opentelemetry-collector-contrib/internal/common v0.112.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.112.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/filter v0.112.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/pdatautil v0.112.0
@@ -100,8 +99,6 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/golden => ../../pkg/golden
 
-replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/common => ../../internal/common
-
 replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/filter => ../../internal/filter
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/pdatautil => ../../internal/pdatautil