Revert "Gracefully handle multiple configuration calls for the same keyspace", one of these commits added a deadlock

This reverts commit 1cad3b8f12805bfcbcd060c304093d9b1282c748.
Revert "Fix nil reference panic on InvalidRequestException", one of these commits added a deadlock

This reverts commit 761e5be520300abe762f385d02c2eb3a020cd384.
Merge pull request #3 from lytics/revert_deadlock

Revert deadlock