Remove ldb_tests.py from make check until it is working again.

Summary: Recent checkin added ldb_test.py to the make check target but the test fails.  Remove it again for now and make task.

Test Plan: No more ldb_tests.py running

Reviewers: igor, anthony

Reviewed By: anthony

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D40449

Makefile

@@ -518,7 +518,6 @@ check: all
 	      echo "===== Running $$t"; ./$$t || exit 1; done;          \
 	fi
 	rm -rf $(TMPD)
-	python tools/ldb_test.py
 	sh tools/rocksdb_dump_test.sh
 
 check_some: $(SUBSET) ldb_tests