remove unused os-specified functions.

[TD-716]

src/os/linux/src/linuxPlatform.c

@@ -56,70 +56,8 @@ void taosMsleep(int mseconds) {
 
 bool taosCheckPthreadValid(pthread_t thread) { return thread != 0; }
 
-void taosResetPthread(pthread_t *thread) { *thread = 0; }
-
 int64_t taosGetPthreadId() { return (int64_t)pthread_self(); }
 
-/*
-* Function to get the private ip address of current machine. If get IP
-* successfully, return 0, else, return -1. The return values is ip.
-*
-* Use:
-* if (taosGetPrivateIp(ip) != 0) {
-*     perror("Fail to get private IP address\n");
-*     exit(EXIT_FAILURE);
-* }
-*/
-int taosGetPrivateIp(char *const ip) {
-  bool hasLoCard = false;
-
-  struct ifaddrs *ifaddr, *ifa;
-  int             family, s;
-  char            host[NI_MAXHOST];
-
-  if (getifaddrs(&ifaddr) == -1) {
-    return -1;
-  }
-
-  /* Walk through linked list, maintaining head pointer so we can free list later */
-  int flag = 0;
-  for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
-    if (ifa->ifa_addr == NULL) continue;
-
-    family = ifa->ifa_addr->sa_family;
-    if (strcmp("lo", ifa->ifa_name) == 0) {
-      hasLoCard = true;
-      continue;
-    }
-
-    if (family == AF_INET) {
-      /* printf("%-8s", ifa->ifa_name); */
-      s = getnameinfo(ifa->ifa_addr, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6),
-                      host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
-      if (s != 0) {
-        freeifaddrs(ifaddr);
-        return -1;
-      }
-
-      strcpy(ip, host);
-      flag = 1;
-      break;
-    }
-  }
-
-  freeifaddrs(ifaddr);
-  if (flag) {
-    return 0;
-  } else {
-    if (hasLoCard) {
-      uPrint("no net card was found, use lo:127.0.0.1 as default");
-      strcpy(ip, "127.0.0.1");
-      return 0;
-    }
-    return -1;
-  }
-}
-
 int taosSetNonblocking(int sock, int on) {
   int flags = 0;
   if ((flags = fcntl(sock, F_GETFL, 0)) < 0) {
@@ -294,21 +232,6 @@ ssize_t twrite(int fd, void *buf, size_t n) {
   return n;
 }
 
-bool taosSkipSocketCheck() {
-  struct utsname buf;
-  if (uname(&buf)) {
-    uPrint("can't fetch os info");
-    return false;
-  }
-
-  if (strstr(buf.release, "Microsoft") != 0) {
-    uPrint("using WSLv1");
-    return true;
-  }
-
-  return false;
-}
-
 void taosBlockSIGPIPE() {
   sigset_t signal_mask;
   sigemptyset(&signal_mask);