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/getpass.c

@@ -284,5 +284,3 @@ int ssh_getpass(const char *prompt,
 }
 
 #endif
-
-/* vim: set ts=4 sw=4 et cindent syntax=c.doxygen: */