This allows to reuse "&File" translation already available in wxstd
catalog rather than translating it again in the sample catalogs for all
languages, so remove the now unnecessary translations from them.
MS and Apple guidelines mention ellipses should generally be used when a command needs additional information from the user before the operation can execute. This is not the case for showing an about dialog so the ellipses have been removed.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70412 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
