no need for prefs check before prefs are loaded

examples/companion_radio/main.cpp

@@ -848,11 +848,9 @@ public:
     loadMainIdentity();
 
     // use hex of first 4 bytes of identity public key as default node name
-    if(strcmp(_prefs.node_name, "NONAME") == 0){
+    char pub_key_hex[10];
-      char pub_key_hex[10];
+    mesh::Utils::toHex(pub_key_hex, self_id.pub_key, 4);
-      mesh::Utils::toHex(pub_key_hex, self_id.pub_key, 4);
+    strcpy(_prefs.node_name, pub_key_hex);
-      strcpy(_prefs.node_name, pub_key_hex);
-    }
 
     // load persisted prefs
     if (_fs->exists("/new_prefs")) {