update-utmp,initctl: drop ppid check

Such checks make debugging harder but serve no useful purpose otherwise.
We got rid of all the checks for root, let's kill those too.

src/initctl/initctl.c

@@ -341,11 +341,6 @@ int main(int argc, char *argv[]) {
         Server server;
         int r = EXIT_FAILURE, n;
 
-        if (getppid() != 1) {
-                log_error("This program should be invoked by init only.");
-                return EXIT_FAILURE;
-        }
-
         if (argc > 1) {
                 log_error("This program does not take arguments.");
                 return EXIT_FAILURE;