memdebug: stop tracking send and recv

- they rarely catch any problems
- we have other ways to test different send/recv problems
- the number of such calls vary much more per invoke than others, making
  memdebugging harder
- reducing the total number of fallible functions per test is good
- they were not used as intended anyway

Closes #20097

src/tool_cb_rea.c

@@ -120,7 +120,7 @@ size_t tool_read_cb(char *buffer, size_t sz, size_t nmemb, void *userdata)
    execute */
   if(per->uploadfile && !strcmp(per->uploadfile, ".") && per->infd > 0) {
 #if defined(_WIN32) && !defined(CURL_WINDOWS_UWP)
-    rc = CURL_RECV(per->infd, buffer, curlx_uztosi(sz * nmemb), 0);
+    rc = recv(per->infd, buffer, curlx_uztosi(sz * nmemb), 0);
     if(rc < 0) {
       if(SOCKERRNO == SOCKEWOULDBLOCK) {
         errno = 0;

src/tool_doswin.c

@@ -781,7 +781,7 @@ static DWORD WINAPI win_stdin_thread_func(void *thread_data)
       break;
     if(n == 0)
       break;
-    nwritten = CURL_SEND(socket_w, buffer, n, 0);
+    nwritten = send(socket_w, buffer, n, 0);
     if(nwritten == SOCKET_ERROR)
       break;
     if((DWORD)nwritten != n)