mdadm/test: get rid of tests/check

The tests/check can be removed due to check()
in new 'test' has covered various checking.

Signed-off-by: Zhilong Liu <zlliu@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

tests/check

@@ -1,35 +0,0 @@
-
-case $1 in
- raid* | linear )
-   grep -s "active $1 " /proc/mdstat > /dev/null || {
-		echo >&2 "ERROR active $1 not found" ; cat /proc/mdstat ; exit 1;}
-  ;;
- resync | recovery )
-   sleep 0.1
-   grep -s $1 /proc/mdstat > /dev/null || {
-		echo >&2 ERROR no $1 happening; cat /proc/mdstat; exit 1; }
-  ;;
-
-  nosync )
-    sleep 0.5
-    grep -s 're[synccovery]* =' > /dev/null /proc/mdstat && {
-		echo >&2 "ERROR resync or recovery is happening!"; cat /proc/mdstat ; exit 1; }
-  ;;
-
- wait )
-   sleep 0.1
-   while grep 're[synccovery]* =' > /dev/null /proc/mdstat
-   do sleep 2;
-   done
-   ;;
-
- state )
-    grep -s "blocks.*\[$2\]\$" /proc/mdstat > /dev/null || {
-		echo >&2 "ERROR state $2 not found!"; cat /proc/mdstat ; exit 1; }
-    sleep 0.5
-   ;;
-
- * ) echo >&2 ERROR unknown check $1 ; exit 1;
-esac
-
-exit 0