Revert "Adding a couple of tests for the SHUTDOWN command and the added NOSAVE option."
Revert "Adding a couple of tests for the SHUTDOWN command and the added NOSAVE option."

This reverts commit 80af0ad26838ea243c2aefdbeee5ec8188750399.

While these tests worked on my local system that would restart Redis, the Redis server on TravisCI wouldn't restart, so the tests are failing.

alisaifee/redis-py,5977862/redis-py,andymccurdy/redis-py,redis/redis-py,andymccurdy/redis-py,mozillazg/redis-py-doc,mozillazg/redis-py-doc,5977862/redis-py,redis/redis-py,5977862/redis-py,andymccurdy/redis-py,alisaifee/redis-py