removeVkRequests.js

// friends
(async () => {
  let replace = false;
  do {
    replace = false;
    while (document.querySelector('[onclick*="Friends.declineRequest"]')) {
      document.querySelector('[onclick*="Friends.declineRequest"]').click();
      replace = true;
      document.querySelector('.friends_user_row').remove();
      const bl = document.querySelector('.friends_list_bl');
      if (!bl.children.length) bl.remove();
      if (!document.querySelector('[onclick*="Friends.declineRequest"]') && document.querySelector('#show_more')) document.querySelector('#show_more').click();
      await new Promise(r => setTimeout(r, 200));
    }
    await new Promise(r => setTimeout(r, 3000));
  } while (replace);
})();

// group decliners
(async () => {
  let replace = false;
  do {
    replace = false;
    while (document.querySelector('[onclick*="GroupsEdit.uAction"][onclick*="-1)"]')) {
      document.querySelector('[onclick*="GroupsEdit.uAction"][onclick*="-1)"]').click();
      replace = true;
      document.querySelector('.group_l_row').remove();
      if (!document.querySelector('[onclick*="GroupsEdit.uAction"][onclick*="-1)"]') && document.querySelector('#group_edit_more_declined')) document.querySelector('#group_edit_more_declined').click();
      await new Promise(r => setTimeout(r, 200));
    }
    await new Promise(r => setTimeout(r, 3000));
  } while (replace);
})();