[media] staging: sir: fix checkpatch strict warnings

Make the code more readable and clean up the includes list.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/lirc/lirc_sir.c

@@ -8,42 +8,18 @@
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/module.h>
-#include <linux/sched/signal.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/fs.h>
 #include <linux/interrupt.h>
-#include <linux/ioport.h>
 #include <linux/kernel.h>
 #include <linux/serial_reg.h>
 #include <linux/ktime.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/wait.h>
-#include <linux/mm.h>
 #include <linux/delay.h>
-#include <linux/poll.h>
-#include <linux/io.h>
-#include <asm/irq.h>
-#include <linux/fcntl.h>
 #include <linux/platform_device.h>
 
-#include <linux/timer.h>
-
 #include <media/rc-core.h>
 
 /* SECTION: Definitions */
@@ -232,13 +208,8 @@ static irqreturn_t sir_interrupt(int irq, void *dev_id)
 			(void)inb(io + UART_MSR);
 			break;
 		case UART_IIR_RLSI:
-			(void) inb(io + UART_LSR);
-			break;
 		case UART_IIR_THRI:
-#if 0
-			if (lsr & UART_LSR_THRE) /* FIFO is empty */
-				outb(data, io + UART_TX)
-#endif
+			(void)inb(io + UART_LSR);
 			break;
 		case UART_IIR_RDI:
 			/* avoid interference with timer */