drivers: video: msm: drop some unused variables

Just dropping a couple of warnings from this driver,

linux-2.6/drivers/video/msm/mdp.c: In function 'get_img':
linux-2.6/drivers/video/msm/mdp.c:261: warning: unused variable 'vstart'

linux-2.6/drivers/video/msm/mddi.c: In function 'mddi_handle_rev_data_avail':
linux-2.6/drivers/video/msm/mddi.c:193: warning: unused variable 'i'
linux-2.6/drivers/video/msm/mddi.c:190: warning: unused variable 'rev'
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>

drivers/video/msm/mddi.c

@@ -187,10 +187,8 @@ static void mddi_wait_interrupt(struct mddi_info *mddi, uint32_t intmask);
 
 static void mddi_handle_rev_data_avail(struct mddi_info *mddi)
 {
-	union mddi_rev *rev = mddi->rev_data;
 	uint32_t rev_data_count;
 	uint32_t rev_crc_err_count;
-	int i;
 	struct reg_read_info *ri;
 	size_t prev_offset;
 	uint16_t length;

drivers/video/msm/mdp.c

@@ -258,7 +258,6 @@ int get_img(struct mdp_img *img, struct fb_info *info,
 {
 	int put_needed, ret = 0;
 	struct file *file;
-	unsigned long vstart;
 
 	file = fget_light(img->memory_id, &put_needed);
 	if (file == NULL)