treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts

With all callbacks converted, and the timer callback prototype
switched over, the TIMER_FUNC_TYPE cast is no longer needed,
so remove it. Conversion was done with the following scripts:

    perl -pi -e 's|\(TIMER_FUNC_TYPE\)||g' \
        $(git grep TIMER_FUNC_TYPE | cut -d: -f1 | sort -u)

    perl -pi -e 's|\(TIMER_DATA_TYPE\)||g' \
        $(git grep TIMER_DATA_TYPE | cut -d: -f1 | sort -u)

The now unused macros are also dropped from include/linux/timer.h.

Signed-off-by: Kees Cook <keescook@chromium.org>

drivers/input/input.c

@@ -2047,7 +2047,7 @@ static void devm_input_device_unregister(struct device *dev, void *res)
  */
 void input_enable_softrepeat(struct input_dev *dev, int delay, int period)
 {
-	dev->timer.function = (TIMER_FUNC_TYPE)input_repeat_key;
+	dev->timer.function = input_repeat_key;
 	dev->rep[REP_DELAY] = delay;
 	dev->rep[REP_PERIOD] = period;
 }