Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseDataModel  b77b0dc3bae5707ff986d5a51d93f0fda62b4f3d

Remove deprecated method now unused

Should not be mreged before 48a87f7 in Wikibase.git

Change-Id: I2236f4d81bf7860820679b07bc7f92d32877db85