Fix all hints discovered by the new linter

`npm run eslintfix`

Change-Id: Ic07aede1b95e7dd53bbd05c062e2afcef5508c10
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.ts b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.ts
index 411bb27..9c98545 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.ts
+++ b/polygerrit-ui/app/elements/admin/gr-repo-access/gr-repo-access.ts
@@ -445,7 +445,7 @@
     }
 
     this._recursivelyUpdateAddRemoveObj(
-      (this._local as unknown) as PropertyTreeNode,
+      this._local as unknown as PropertyTreeNode,
       addRemoveObj
     );
 
@@ -470,9 +470,11 @@
     this.set(['_local', newRef], section);
     flush();
     // Template already instantiated at this point
-    (this.root!.querySelector(
-      'gr-access-section:last-of-type'
-    ) as GrAccessSection).editReference();
+    (
+      this.root!.querySelector(
+        'gr-access-section:last-of-type'
+      ) as GrAccessSection
+    ).editReference();
   }
 
   _getObjforSave(): ProjectAccessInput | undefined {
@@ -486,10 +488,10 @@
       fireAlert(this, NOTHING_TO_SAVE);
       return;
     }
-    const obj: ProjectAccessInput = ({
+    const obj: ProjectAccessInput = {
       add: addRemoveObj.add,
       remove: addRemoveObj.remove,
-    } as unknown) as ProjectAccessInput;
+    } as unknown as ProjectAccessInput;
     if (addRemoveObj.parent) {
       obj.parent = addRemoveObj.parent;
     }