Revert "moving en and prefix search traffic back to eqiad"

This reverts commit b745f8da4f979cb0cd4fb58974dff6359ddb59aa

Change-Id: Ie2b4a464abc72a70fa56aae42e84b9a1f30298c1
Remove 1.22wmf3 and 1.22wmf4

Change-Id: I749f5a36c196ced101f76163f2c7d7406debaa8b
Merge "Revert "moving en and prefix search traffic back to eqiad""
Merge "Remove 1.22wmf3 and 1.22wmf4"