staging: mt7621-mmc: Remove unused field cmd_r1b_done in msdc_host

The field cmd_r1b_done in msdc_host is unused, so remove it.
Signed-off-by: Christian Lütke-Stetzkamp <christian@lkamp.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-mmc/mt6575_sd.h

@@ -909,7 +909,6 @@ struct msdc_host {
 	struct mmc_request          *mrq;
 	int                         cmd_rsp;
 	int                         cmd_rsp_done;
-	int                         cmd_r1b_done;
 
 	int                         error;
 	spinlock_t                  lock;           /* mutex */