google: Fix issue with stale entries remaining after rename operation
Currently, whenever we perform a rename operation, we set the entry's
title to new display name, but at the time of removal of this entry from
cache, we still use the newer title. Hence, each time rename is done, a
single stale entry remains. This commit fixes the issue by reverting
back the title to the original display name of entry and then
performing a removal from cache.
Fixes: #410 (closed)