video: fbdev: pvr2fb: remove set but not used variable 'size'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/video/fbdev/pvr2fb.c: In function 'pvr2fb_init':
drivers/video/fbdev/pvr2fb.c:1074:6: warning:
 variable 'size' set but not used [-Wunused-but-set-variable]

It's not used since commit 9cd1c674 ("pvr2fb: Fix oops when
pseudo_palette is written")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ira Weiny <ira.weiny@intel.com>
[b.zolnierkie: minor patch summary fixup]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

drivers/video/fbdev/pvr2fb.c

@@ -1071,7 +1071,6 @@ static struct pvr2_board {
 static int __init pvr2fb_init(void)
 {
 	int i, ret = -ENODEV;
-	int size;
 
 #ifndef MODULE
 	char *option = NULL;
@@ -1080,7 +1079,6 @@ static int __init pvr2fb_init(void)
 		return -ENODEV;
 	pvr2fb_setup(option);
 #endif
-	size = sizeof(struct fb_info) + sizeof(struct pvr2fb_par) + 16 * sizeof(u32);
 
 	fb_info = framebuffer_alloc(sizeof(struct pvr2fb_par), NULL);