remove weird hack

git-svn-id: http://svn.code.sf.net/p/vice-emu/code/trunk/vice@27854 379a1393-f5fb-40a0-bcee-ef074d9b53f7
make ram banking more compact

git-svn-id: http://svn.code.sf.net/p/vice-emu/code/trunk/vice@27855 379a1393-f5fb-40a0-bcee-ef074d9b53f7
Merge remote-tracking branch 'git-svn'