OTA rollback nits

src/net.c

@@ -279,11 +279,6 @@ void mg_mgr_free(struct mg_mgr *mgr) {
 
 void mg_mgr_init(struct mg_mgr *mgr) {
   memset(mgr, 0, sizeof(*mgr));
-  // Anchor mg_fw_version: a real store into a struct field the optimiser
-  // can't elide forces the linker to keep the section alive even when no
-  // OTA polling code runs it. Callers that want mgr->userdata for their own
-  // purposes simply overwrite it after this call returns
-  mgr->userdata = (void *) mg_fw_version;
 #if MG_ENABLE_EPOLL
   if ((mgr->epoll_fd = epoll_create1(EPOLL_CLOEXEC)) < 0)
     MG_ERROR(("epoll_create1 errno %d", errno));