remove more sketchiness

src/tests/frontend/specs/responsiveness.js

@@ -46,10 +46,6 @@ describe('Responsiveness of Editor', function () {
       await wait(200);
       i++;
     }
-    const expectedLinesMin = numberOfEdits / 4;
-    // check line count is > 700
-    await helper.waitForPromise(
-        () => helper.padInner$('div').length >= expectedLinesMin, 60000);
 
     // do an edit, ensure it's on the screen within 200 ms.
     const rand = Math.random().toString(36).substring(7);