Given (Single-line parentheses):
  (hello world)|

Before ():
  normal! gg0f(

Do (Delete %):
  d%
Expect (Verify):
  |
Do (Delete v%):
  dv%
Expect (Verify):
  )|
Do (Delete V%):
  dV%
Expect (Verify):
  
Do (Delete <c-v>%):
  d%
Expect (Verify):
  |

