hostname module: don't filter hostnamectl with awk

There's no need to filter hostnamectl's output with awk because its man
page says:

    hostnamectl [OPTIONS...] {COMMAND}

       --static, --transient, --pretty
	   If status is used (or no explicit command is given) and one
	   of those fields is given, hostnamectl will print out just
           this selected hostname.

E.g. hostnamectl --static status => ansible.example.org

system/hostname

@@ -285,7 +285,7 @@ class FedoraStrategy(GenericStrategy):
                 (rc, out, err))
 
     def get_permanent_hostname(self):
-        cmd = 'hostnamectl status | awk \'/^ *Static hostname:/{printf("%s", $3)}\''
+        cmd = 'hostnamectl --static status'
         rc, out, err = self.module.run_command(cmd, use_unsafe_shell=True)
         if rc != 0:
             self.module.fail_json(msg="Command failed rc=%d, out=%s, err=%s" %