Clean up duplicated xmlns:v namespace aliases

Change-Id: Idc3b19b0d52f46ab74e7061bb81939ae5ca5eca4
Clean up duplicated xmlns:w14 definitions

Change-Id: I9283da66c5b88ea73062b7f5bd5ca3f695e12732
Clean up duplicated xmlns:wp14 definitions

Change-Id: I4fb7dfb3a8c401aa34ded7d5d93a1b7b88e7278e
Clean up remaining duplicated xmlns namespace alias definitions

Change-Id: I0a8550f8f80d017c6c7578f14382d2704d800c46