Revert "Update VisualEditor to wmf20 for cherry-pick of I0fb47f7c91f61 and If48555fa476"

This reverts commit d9455e32d16473f0d34049e2d70e4eb56e25d33b.

Change-Id: I3f3726efacc7051d8d22db3cdb1efbb20c51e24c
Merge "Revert "Update VisualEditor to wmf20 for cherry-pick of I0fb47f7c91f61 and If48555fa476"" into wmf/1.24wmf20