Input: remove unused header <linux/input/cy8ctmg110_pdata.h>

Commit 83b41248 ("Input: cy8ctmg110_ts - switch to using gpiod API")
remove the last use of <linux/input/cy8ctmg110_pdata.h> but left the header
file behind.  Nothing uses it now, delete it.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20211102220203.940290-6-corbet@lwn.netSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

include/linux/input/cy8ctmg110_pdata.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LINUX_CY8CTMG110_PDATA_H
-#define _LINUX_CY8CTMG110_PDATA_H
-
-struct cy8ctmg110_pdata
-{
-	int reset_pin;		/* Reset pin is wired to this GPIO (optional) */
-};
-
-#endif