Revert "MB-28749: Use gtest_discover_tests to parallelise memcached_testapp"
Revert "MB-28749: Use gtest_discover_tests to parallelise memcached_testapp"

This reverts commit a85d2ca1c945b923b90b51565fe43d695b327b75.

Build is failing on MSVC 2015.

Change-Id: I8e656093226090092fc1a95cc7c7f1427985afe5
Reviewed-on: http://review.couchbase.org/91457
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine