[MIPS] RTLX: Delete multiple definition of ret shaddowing each other.

Signed-off-by: Ralf Baechle <[e-mail]>

arch/mips/kernel/rtlx.c

···
 	if (rtlx == NULL) {
 		if( (p = vpe_get_shared(RTLX_TARG_VPE)) == NULL) {
 			if (can_sleep) {
-				int ret = 0;
-
 				__wait_event_interruptible(channel_wqs[index].lx_queue,
 				                           (p = vpe_get_shared(RTLX_TARG_VPE)),
 				                           ret);
···
 
 		if (*p == NULL) {
 			if (can_sleep) {
-				int ret = 0;
-
 				__wait_event_interruptible(channel_wqs[index].lx_queue,
 				                           *p != NULL,
 				                           ret);