Limit the use of the same shortcut name and url when adding a shortcut with test cases

Signed-off-by: AmbrishRamachandiran <ambrish.r@infosys.com>

plugins/shortcuts/src/ShortcutForm.test.tsx

@@ -53,9 +53,6 @@ describe('ShortcutForm', () => {
       expect(
         screen.getByText('Must be at least 2 characters'),
       ).toBeInTheDocument();
-      expect(
-        screen.getByText('A shortcut with this title already exists'),
-      ).toBeInTheDocument();
     });
   });