Ellipse on editable dropdown for long values (#908)

* make dropdown ellipse for long database names

* remove unneeded code

src/sql/base/browser/ui/editableDropdown/dropdown.ts

@@ -176,7 +176,7 @@ export class Dropdown extends Disposable {
 			filter: this._filter,
 			renderer: this._renderer,
 			controller: this._controller
-		});
+		}, { paddingOnRow: false, indentPixels: 0, twistiePixels: 0 });
 
 		this.values = this._options.values;