remove overrides of getActionsContext on viewpanecontainer (microsoft#226492)

always use the single view context in case of merged

Author: sbatten

src/vs/workbench/browser/parts/views/viewPaneContainer.ts

@@ -593,6 +593,9 @@ export class ViewPaneContainer extends Component implements IViewPaneContainer {
 	}
 
 	getActionsContext(): unknown {
+		if (this.isViewMergedWithContainer()) {
+			return this.panes[0].getActionsContext();
+		}
 		return undefined;
 	}
 

src/vs/workbench/contrib/scm/browser/scmViewPaneContainer.ts

@@ -6,7 +6,7 @@
 import 'vs/css!./media/scm';
 import { localize } from 'vs/nls';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
-import { ISCMViewService, VIEWLET_ID } from 'vs/workbench/contrib/scm/common/scm';
+import { VIEWLET_ID } from 'vs/workbench/contrib/scm/common/scm';
 import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { IContextMenuService } from 'vs/platform/contextview/browser/contextView';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
@@ -21,7 +21,6 @@ import { ViewPaneContainer } from 'vs/workbench/browser/parts/views/viewPaneCont
 export class SCMViewPaneContainer extends ViewPaneContainer {
 
 	constructor(
-		@ISCMViewService private readonly scmViewService: ISCMViewService,
 		@IWorkbenchLayoutService layoutService: IWorkbenchLayoutService,
 		@ITelemetryService telemetryService: ITelemetryService,
 		@IInstantiationService instantiationService: IInstantiationService,
@@ -49,8 +48,4 @@ export class SCMViewPaneContainer extends ViewPaneContainer {
 		return localize('source control', "Source Control");
 	}
 
-	override getActionsContext(): unknown {
-		return this.scmViewService.visibleRepositories.length === 1 ? this.scmViewService.visibleRepositories[0].provider : undefined;
-	}
-
 }