Live: simplify dependencies (#115130)

pkg/services/live/livecontext/context.go

@@ -2,27 +2,8 @@ package livecontext
 
 import (
 	"context"
-
-	"github.com/grafana/grafana/pkg/apimachinery/identity"
 )
 
-type signedUserContextKeyType int
-
-var signedUserContextKey signedUserContextKeyType
-
-func SetContextSignedUser(ctx context.Context, user identity.Requester) context.Context {
-	ctx = context.WithValue(ctx, signedUserContextKey, user)
-	return ctx
-}
-
-func GetContextSignedUser(ctx context.Context) (identity.Requester, bool) {
-	if val := ctx.Value(signedUserContextKey); val != nil {
-		user, ok := val.(identity.Requester)
-		return user, ok
-	}
-	return nil, false
-}
-
 type streamIDContextKey struct{}
 
 func SetContextStreamID(ctx context.Context, streamID string) context.Context {