video: fbdev: gbefb: Fix set but not used warning

The variable "x" was set but never used.
Drop the redundant assignments.

Signed-off-by: Sam Ravnborg <[e-mail]>
Acked-by: Thomas Zimmermann <[e-mail]>
Cc: Sam Ravnborg <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/video/fbdev/gbefb.c

···
 static void gbe_turn_off(void)
 {
 	int i;
-	unsigned int val, x, y, vpixen_off;
+	unsigned int val, y, vpixen_off;
 
 	gbe_turned_on = 0;
 
···
 
 	for (i = 0; i < 100000; i++) {
 		val = gbe->vt_xy;
-		x = GET_GBE_FIELD(VT_XY, X, val);
 		y = GET_GBE_FIELD(VT_XY, Y, val);
 		if (y < vpixen_off)
 			break;
···
 		       "gbefb: wait for vpixen_off timed out\n");
 	for (i = 0; i < 10000; i++) {
 		val = gbe->vt_xy;
-		x = GET_GBE_FIELD(VT_XY, X, val);
 		y = GET_GBE_FIELD(VT_XY, Y, val);
 		if (y > vpixen_off)
 			break;