vconsole: default to the kernel compiled-in keymap

No longer override the default kernel keymap if nothing is specified in
    vconsole.conf.

    The default should be to do nothing (i.e., use what is already in the
    kernel) unless the distro/admin has explicitly requested it.

src/vconsole/vconsole-setup.c

@@ -214,13 +214,6 @@ int main(int argc, char **argv) {
 
         utf8 = is_locale_utf8();
 
-        vc_keymap = strdup("us");
-
-        if (!vc_keymap) {
-                log_error("Failed to allocate string.");
-                goto finish;
-        }
-
         r = 0;
 
         if (detect_container(NULL) <= 0) {