Bug 47648: meta.m.wikimedia.org user login screen inexplicably has "W" icon

Config change in https://gerrit.wikimedia.org/r/#/c/63081/

Change-Id: I58d0129f7e0e053f8e24c10c53f7fa4709be64c5
Merge "Bug 47648: meta.m.wikimedia.org user login screen inexplicably has "W" icon"