Feature toggle: Remove addFieldFromCalculationStatFunctions feature toggle (#113757)

* Remove addFieldFromCalculationStatFunctions feature toggle

The addFieldFromCalculationStatFunctions feature toggle was at GA stage
and enabled by default. This commit removes the toggle and makes the
cumulative and window functions permanently available in the add field
from calculation transformation.

Changes:
- Removed feature toggle definition from registry.go
- Updated CalculateFieldTransformerEditor to always include cumulative and window functions
- Removed unused config import
- Removed documentation entry
- Regenerated all generated files (toggles_gen.go, toggles_gen.csv, toggles_gen.json, featureToggles.gen.ts)

* fix merge conflicts

pkg/services/featuremgmt/registry.go

@@ -545,14 +545,6 @@ var (
 			Owner:        grafanaOperatorExperienceSquad,
 			FrontendOnly: false,
 		},
-		{
-			Name:         "addFieldFromCalculationStatFunctions",
-			Description:  "Add cumulative and window functions to the add field from calculation transformation",
-			Stage:        FeatureStageGeneralAvailability,
-			FrontendOnly: true,
-			Owner:        grafanaDataProSquad,
-			Expression:   "true", // enabled by default
-		},
 		{
 			Name:        "alertmanagerRemoteSecondary",
 			Description: "Enable Grafana to sync configuration and state with a remote Alertmanager.",

pkg/services/featuremgmt/toggles_gen.csv

@@ -72,7 +72,6 @@ queryServiceFromUI,experimental,@grafana/grafana-datasources-core-services,false
 queryServiceFromExplore,experimental,@grafana/grafana-datasources-core-services,false,false,true
 cloudWatchBatchQueries,preview,@grafana/aws-datasources,false,false,false
 cachingOptimizeSerializationMemoryUsage,experimental,@grafana/grafana-operator-experience-squad,false,false,false
-addFieldFromCalculationStatFunctions,GA,@grafana/datapro,false,false,true
 alertmanagerRemoteSecondary,experimental,@grafana/alerting-squad,false,false,false
 alertingProvenanceLockWrites,experimental,@grafana/alerting-squad,false,false,false
 alertingUIUseBackendFilters,experimental,@grafana/alerting-squad,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -299,10 +299,6 @@ const (
 	// If enabled, the caching backend gradually serializes query responses for the cache, comparing against the configured `[caching]max_value_mb` value as it goes. This can can help prevent Grafana from running out of memory while attempting to cache very large query responses.
 	FlagCachingOptimizeSerializationMemoryUsage = "cachingOptimizeSerializationMemoryUsage"
 
-	// FlagAddFieldFromCalculationStatFunctions
-	// Add cumulative and window functions to the add field from calculation transformation
-	FlagAddFieldFromCalculationStatFunctions = "addFieldFromCalculationStatFunctions"
-
 	// FlagAlertmanagerRemoteSecondary
 	// Enable Grafana to sync configuration and state with a remote Alertmanager.
 	FlagAlertmanagerRemoteSecondary = "alertmanagerRemoteSecondary"

pkg/services/featuremgmt/toggles_gen.json

@@ -8,6 +8,7 @@
         "name": "addFieldFromCalculationStatFunctions",
         "resourceVersion": "1762442825881",
         "creationTimestamp": "2023-11-03T14:39:58Z",
+        "deletionTimestamp": "2025-11-12T14:07:50Z",
         "annotations": {
           "grafana.app/updatedTimestamp": "2025-11-06 15:27:05.88172 +0000 UTC"
         }