Revert "Disable search updates for Cirrus wikis for the time being"

This reverts commit a8723d447344c57a4f40b52eae076c683201a11a.

Change-Id: I9dc320f91b3e190c47cdd0f88f9b562e04b6e38e
Merge "Revert "Disable search updates for Cirrus wikis for the time being""