staging/xgifb: remove unused variable

In function XGIfb_do_set_var() remove unused variable sr_data.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 21c0378..641fd8d 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -1088,7 +1088,7 @@
 	unsigned int vtotal = var->upper_margin + var->yres + var->lower_margin
 			+ var->vsync_len;
 #if defined(__powerpc__)
-	u8 sr_data, cr_data;
+	u8 cr_data;
 #endif
 	unsigned int drate = 0, hrate = 0;
 	int found_mode = 0;