remove highlight for panel (#200717)

Author: benibenj

src/vs/workbench/browser/parts/paneCompositePart.ts

@@ -306,7 +306,6 @@ export abstract class AbstractPaneCompositePart extends CompositePart<PaneCompos
 			orientation: ActionsOrientation.HORIZONTAL,
 			getKeyBinding: action => this.keybindingService.lookupKeybinding(action.id),
 			anchorAlignmentProvider: () => this.getTitleAreaDropDownAnchorAlignment(),
-			highlightToggledItems: true,
 			toggleMenuTitle: localize('moreActions', "More Actions...")
 		}));