remove recommendation text for installed extensions

Author: sandy081

src/vs/workbench/contrib/extensions/browser/extensionEditor.ts

@@ -599,7 +599,6 @@ export class ExtensionEditor extends EditorPane {
 
 	private setRecommendationText(extension: IExtension, template: IExtensionEditorTemplate): void {
 		const updateRecommendationText = (layout: boolean) => {
-			reset(template.recommendation);
 			const extRecommendations = this.extensionRecommendationsService.getAllRecommendationsWithReason();
 			if (extRecommendations[extension.identifier.id.toLowerCase()]) {
 				const reasonText = extRecommendations[extension.identifier.id.toLowerCase()].reasonText;
@@ -614,6 +613,10 @@ export class ExtensionEditor extends EditorPane {
 				this.layout(this.dimension);
 			}
 		};
+		reset(template.recommendation);
+		if (extension.state === ExtensionState.Installed) {
+			return;
+		}
 		updateRecommendationText(false);
 		this.transientDisposables.add(this.extensionRecommendationsService.onDidChangeRecommendations(() => updateRecommendationText(true)));
 	}