Zap up to char, but without the mini buffer prompt.

.emacs

;; Zap up to char quickly.
(defun vg-quick-zap-up-to-char (p c)
  "The same as zap up to char, but without the mini buffer prompt.
P: The prefix argument or the count.
C: The character to zap up to."
  (interactive "P\nc")
  (let ((cnt (cond ((null p) 1)
                   ((symbolp p) -1)
                   (t p))))
    (zap-up-to-char cnt c)))
(define-key global-map (kbd "C-z") 'vg-quick-zap-up-to-char)