Plain fboundp silences compilation warnings since Emacs 22.1

Plain fboundp silences compilation warnings since Emacs 22.1

* progmodes/cc-cmds.el (delete-forward-p):
* progmodes/cc-defs.el (buffer-syntactic-context-depth):
* progmodes/cc-engine.el (buffer-syntactic-context):
* progmodes/cc-fonts.el (face-property-instance):
* progmodes/cc-mode.el (set-keymap-parents):
* progmodes/cc-vars.el (get-char-table): No need for cc-bytecomp-defun.
* progmodes/cc-defs.el (c-set-region-active, c-beginning-of-defun-1)
* progmodes/cc-mode.el (c-make-inherited-keymap): Use plain fboundp.