Remove the old referenceInfos editor config option

This setting was removed two years back #17452

src/vs/editor/common/config/editorOptions.ts

@@ -491,11 +491,6 @@ export interface IEditorOptions {
 	 * Defaults to true.
 	 */
 	codeLens?: boolean;
-	/**
-	 * @deprecated - use codeLens instead
-	 * @internal
-	 */
-	referenceInfos?: boolean;
 	/**
 	 * Control the behavior and rendering of the code action lightbulb.
 	 */
@@ -1745,7 +1740,7 @@ export class EditorOptionsValidator {
 			suggestLineHeight: _clampedInt(opts.suggestLineHeight, defaults.suggestLineHeight, 0, 1000),
 			selectionHighlight: _boolean(opts.selectionHighlight, defaults.selectionHighlight),
 			occurrencesHighlight: _boolean(opts.occurrencesHighlight, defaults.occurrencesHighlight),
-			codeLens: _boolean(opts.codeLens, defaults.codeLens) && _boolean(opts.referenceInfos, true),
+			codeLens: _boolean(opts.codeLens, defaults.codeLens),
 			folding: _boolean(opts.folding, defaults.folding),
 			foldingStrategy: _stringSet<'auto' | 'indentation'>(opts.foldingStrategy, defaults.foldingStrategy, ['auto', 'indentation']),
 			showFoldingControls: _stringSet<'always' | 'mouseover'>(opts.showFoldingControls, defaults.showFoldingControls, ['always', 'mouseover']),