adb: remove unnecessary addr arguments to accept.

Follow up to https://android-review.googlesource.com/#/c/261412/

Change-Id: I0ee130db302940f3224cc823a26b02fc45da0fca
Test: mma
diff --git a/transport_local.cpp b/transport_local.cpp
index d918cc7..d620a37 100644
--- a/transport_local.cpp
+++ b/transport_local.cpp
@@ -197,9 +197,6 @@
 
 static void server_socket_thread(void* arg) {
     int serverfd, fd;
-    sockaddr_storage ss;
-    sockaddr *addrp = reinterpret_cast<sockaddr*>(&ss);
-    socklen_t alen;
     int port = (int) (uintptr_t) arg;
 
     adb_thread_setname("server socket");
@@ -217,9 +214,8 @@
             close_on_exec(serverfd);
         }
 
-        alen = sizeof(ss);
         D("server: trying to get new connection from %d", port);
-        fd = adb_socket_accept(serverfd, addrp, &alen);
+        fd = adb_socket_accept(serverfd, nullptr, nullptr);
         if(fd >= 0) {
             D("server: new connection on fd %d", fd);
             close_on_exec(fd);