Do not block on read of tdeinit socket and thereby rely on forcible tdeinit_shutdown termination during logout

This partially resolves Bug 760
(cherry picked from commit a9e5bed292)

kinit/wrapper.c

@@ -353,7 +353,6 @@ int main(int argc, char **argv)
       header.cmd = LAUNCHER_TERMINATE_KDE;
       header.arg_length = 0;
       write_socket(sock, (char *) &header, sizeof(header));
-      read_socket(sock, (char *) &header, 1); /* wait for the socket to close */
       return 0;
    }