Revert "keymap: add --version option"

This reverts commit d8f173fd2e.

src/udev/keymap/keymap.c

@@ -362,13 +362,8 @@ static void help(int error)
 
 int main(int argc, char **argv)
 {
-        enum {
-                ARG_VERSION = 0x100,
-        };
-
         static const struct option options[] = {
                 { "help", no_argument, NULL, 'h' },
-                { "version", no_argument, NULL, ARG_VERSION },
                 { "interactive", no_argument, NULL, 'i' },
                 {}
         };
@@ -387,10 +382,6 @@ int main(int argc, char **argv)
                 case 'h':
                         help(0);
 
-                case ARG_VERSION:
-                        puts(PACKAGE_STRING);
-                        exit(0);
-
                 case 'i':
                         opt_interactive = 1;
                         break;