Revert "Actually put wb.client.getMwApiForRepo in wb.client"

wb.client doesn't exist, thus this broke client.
This reverts commit 8b58cdfca624ab1505788b9b08022eaf1e0ae8b3.

Change-Id: I451bb60f2d1f8363af41d0ddc21571f9dd9f69a6
Merge "Revert "Actually put wb.client.getMwApiForRepo in wb.client""