Remove 1.23wmf11 symlinks

Change-Id: I77d32e2c2aea858867f1581c930283d9427e91e2
Remove 1.23wmf12 symlinks

Change-Id: Ibd7479bac64b6c607aff4b17d9fa3087c06ed9d6
Add 1.23wmf20 symlinks

Change-Id: I919b3687ad1cb25a775f2c85566b1a1bf0c2b287