Revert "Longpoll is not supposed to use POST and this could be leading to longpoll failures."

This reverts commit ad0be6cfbe9eb0256f78ce50f0c0d99c1be5d925.

Wrong fix and probably an inappropriate thing to do anyway.

util.c

@@ -257,8 +257,7 @@ json_t *json_rpc_call(CURL *curl, const char *url,
 		curl_easy_setopt(curl, CURLOPT_USERPWD, userpass);
 		curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
 	}
-	if (!longpoll)
-		curl_easy_setopt(curl, CURLOPT_POST, 1);
+	curl_easy_setopt(curl, CURLOPT_POST, 1);
 
 	if (opt_protocol)
 		applog(LOG_DEBUG, "JSON protocol request:\n%s\n", rpc_req);