staging: mt7621-mmc: Remove unused field cmd_rsp_done of msdc_host

The cmd_rsp_done field of msdc_host is never used, 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

@@ -908,7 +908,6 @@ struct msdc_host {
 	struct mmc_data             *data;
 	struct mmc_request          *mrq;
 	int                         cmd_rsp;
-	int                         cmd_rsp_done;
 
 	int                         error;
 	spinlock_t                  lock;           /* mutex */