explorer: minor cleanup of unused methods

src/vs/workbench/contrib/files/browser/views/explorerDecorationsProvider.ts

@@ -36,10 +36,6 @@ export class ExplorerDecorationsProvider implements IDecorationsProvider {
 		return this._onDidChange.event;
 	}
 
-	changed(uris: URI[]): void {
-		this._onDidChange.fire(uris);
-	}
-
 	provideDecorations(resource: URI): IDecorationData | undefined {
 		const fileStat = this.explorerService.findClosest(resource);
 		if (fileStat && fileStat.isRoot && fileStat.isError) {

src/vs/workbench/contrib/files/browser/views/explorerView.ts

@@ -68,7 +68,6 @@ export class ExplorerView extends ViewletPanel {
 	// Refresh is needed on the initial explorer open
 	private shouldRefresh = true;
 	private dragHandler: DelayedDragHandler;
-	private decorationProvider: ExplorerDecorationsProvider;
 	private autoReveal = false;
 
 	constructor(
@@ -99,9 +98,9 @@ export class ExplorerView extends ViewletPanel {
 		this.readonlyContext = ExplorerResourceReadonlyContext.bindTo(contextKeyService);
 		this.rootContext = ExplorerRootContext.bindTo(contextKeyService);
 
-		this.decorationProvider = new ExplorerDecorationsProvider(this.explorerService, contextService);
-		decorationService.registerDecorationsProvider(this.decorationProvider);
-		this.disposables.push(this.decorationProvider);
+		const decorationProvider = new ExplorerDecorationsProvider(this.explorerService, contextService);
+		decorationService.registerDecorationsProvider(decorationProvider);
+		this.disposables.push(decorationProvider);
 		this.disposables.push(this.resourceContext);
 	}