[media] au0828: no need to sleep at the IR code

This sleep was doing some debouncing on the original driver.
This is not needed on Linux, because the RC core and the input
layer already takes care of it.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/usb/au0828/au0828-input.c

@@ -135,8 +135,6 @@ static int au0828_get_key_au8522(struct au0828_rc *ir)
 	/* Disable IR */
 	au8522_rc_clear(ir, 0xe0, 1 << 4);
 
-	usleep_range(45000, 46000);
-
 	/* Enable IR */
 	au8522_rc_set(ir, 0xe0, 1 << 4);