qemu-iotests: Remove blkdebug.conf after tests

qemu-iotests 074 and 179 left a blkdebug.conf behind in the scratch
directory. Make sure to clean up after completing the tests.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Reviewed-by: NJeff Cody <jcody@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>

tests/qemu-iotests/074

@@ -32,6 +32,7 @@ _cleanup()
     echo "Cleanup"
     _cleanup_test_img
     rm "${TEST_IMG2}"
+    rm -f "$TEST_DIR/blkdebug.conf"
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15
 

tests/qemu-iotests/179

@@ -30,6 +30,7 @@ status=1	# failure is the default!
 _cleanup()
 {
 	_cleanup_test_img
+    rm -f "$TEST_DIR/blkdebug.conf"
 }
 trap "_cleanup; exit \$status" 0 1 2 3 15