Remove vim modelines from all files

If you want modelines use my vim plugin:
https://github.com/cryptomilk/git-modeline.vim

git config --add vim.modeline "ts=4 sw=4 et"

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>

src/base64.c

@@ -288,5 +288,3 @@ unsigned char *bin_to_base64(const unsigned char *source, int len) {
 
   return base64;
 }
-
-/* vim: set ts=2 sw=2 et cindent: */