Disable incoming link counts on commons

Won't take effect until I4387999d is live but can go out whenever.
Also clean up weird duplicate config while we're here.

Change-Id: I0fdbc4b740797c03ae0c3fa5557acfcefb6b7888
Increase weighting of title field for Commons

Change-Id: I83f2892f96f88b2293e0a35d203db8e518cc2991
Merge "Disable incoming link counts on commons"
Merge "Increase weighting of title field for Commons"