Revert "set local name of attribute 'xml:lang' with vale 'lang' ,or it will"
Revert "set local name of attribute 'xml:lang' with vale 'lang' ,or it will"

This reverts commit 1f36151746d1802c602dd59a3df4d372dac6e967.

The handling of namespaced attributes was fixed in XMLUtils.

dita-ot/dita-ot,robander/dita-ot,infotexture/dita-ot,drmacro/dita-ot,Hasimir/dita-ot,infotexture/dita-ot,jelovirt/muuntaja,doctales/dita-ot,eerohele/dita-ot,shaneataylor/dita-ot,zanyants/dita-ot,shaneataylor/dita-ot,zanyants/dita-ot,infotexture/dita-ot,Hasimir/dita-ot,robander/dita-ot,shaneataylor/dita-ot,robander/dita-ot,queshaw/dita-ot,jelovirt/muuntaja,shaneataylor/dita-ot,eerohele/dita-ot,dita-ot/dita-ot,robander/dita-ot,jelovirt/muuntaja,Hasimir/dita-ot,Hasimir/dita-ot,drmacro/dita-ot,dita-ot/dita-ot,dita-ot/dita-ot,queshaw/dita-ot,drmacro/dita-ot,eerohele/dita-ot,doctales/dita-ot,drmacro/dita-ot,infotexture/dita-ot,dita-ot/dita-ot,zanyants/dita-ot,doctales/dita-ot,doctales/dita-ot,robander/dita-ot,queshaw/dita-ot,shaneataylor/dita-ot,queshaw/dita-ot,zanyants/dita-ot,drmacro/dita-ot,eerohele/dita-ot,infotexture/dita-ot