Simplify the version information resource definition a little.

Simplify the version information resource definition a little.

Put the correct data into FileVersion and InternalName fields and remove
LegalTrademarks, PrivateBuild and SpecialBuild completely as they are optional
and shouldn't be present if the corresponding flags are not set, see
http://msdn.microsoft.com/en-us/library/windows/desktop/aa381058(v=vs.85).aspx

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74122 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775