staging: mt7621-mmc: delele extra blank lines

Delete extra blank lines to mute checkpatch.pl check:
CHECK: Please don't use multiple blank lines
Signed-off-by: Wentao Cai <etsai042@gmail.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/mt7621-mmc/dbg.c

@@ -50,7 +50,6 @@
 #include "mt6575_sd.h"
 #include <linux/seq_file.h>
 
-
 /* for debug zone */
 unsigned int sd_debug_zone[4] = {
 	0,