Remove check for suppressing keyboard shortcuts from expand diffs

Clicking the Expand All button triggers this method and hence there
shouldn't be a check for suppressing keyboard shortcuts.

Change-Id: I0b25687ba768e7df2ac33bc84f7612f5d1727e82
diff --git a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.ts b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.ts
index 659d5bd..e0b2675 100644
--- a/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.ts
+++ b/polygerrit-ui/app/elements/change/gr-change-view/gr-change-view.ts
@@ -1225,10 +1225,7 @@
     this._shownFileCount = e.detail.length;
   }
 
-  _expandAllDiffs(e: CustomKeyboardEvent) {
-    if (this.shouldSuppressKeyboardShortcut(e)) {
-      return;
-    }
+  _expandAllDiffs() {
     this.$.fileList.expandAllDiffs();
   }