Remove TODO as we will not check content format on register request

leshan-server-cf/src/main/java/org/eclipse/leshan/server/californium/impl/RegisterResource.java

@@ -148,7 +148,7 @@ private void handleRegister(CoapExchange exchange, Request request) {
 
         // Create LwM2m request from CoAP request
         // --------------------------------
-        // TODO: assert content media type is APPLICATION LINK FORMAT?
+        // We don't check content media type is APPLICATION LINK FORMAT for now as this is the only format we can expect
         String endpoint = null;
         Long lifetime = null;
         String smsNumber = null;