Remove RPM .spec files from the repository.

They were not really used for anything but still had to be updated and
maintained.

Get rid of them as all RPM-based distributions use their own spec files
anyhow.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74907 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

misc/scripts/inc_release

@@ -75,10 +75,6 @@ run_sed configure.in \
     "s/^wx_release_number=$ver_release/wx_release_number=$ver_release_new/" \
     "s/^wx_subrelease_number=.*$/wx_subrelease_number=0/"
 
-for f in *.spec; do
-    run_sed $f "/^%define *ver/s/$ver_for_sed/$ver_string_new/"
-done
-
 run_sed build/osx/wxvers.xcconfig \
     "/DYLIB_.* = /s/$ver_for_sed/$ver_string_new/"