Remove mutually exclusive tags from vcredist 64bit package.xml

Change required after switching to ifw 1.4.

Change-Id: I34cb0a119d71ef46cfd9672366b63799244d3e66
Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>