syscalls/rmdir02: Convert to tst_acquire_device()

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
diff --git a/runtest/ltplite b/runtest/ltplite
index 43f11d8..939ea35 100644
--- a/runtest/ltplite
+++ b/runtest/ltplite
@@ -645,7 +645,7 @@
 rename14 rename14
 
 rmdir01 rmdir01
-rmdir02 rmdir02 -D $LTP_DEV -T $LTP_DEV_FS_TYPE
+rmdir02 rmdir02
 rmdir03 rmdir03
 rmdir03A symlink01 -T rmdir03
 rmdir04 rmdir04