[sanitizer] Guard the whole ThreadDescriptorSize block with #if !SANITIZER_GO after D119007

The SANITIZER_GO code path reports an undefined symbol error for dlsym.

```
FAILED: projects/compiler-rt/lib/tsan/rtl/CMakeFiles/GotsanRuntimeCheck /tmp/RelA/projects/compiler-rt/lib/tsan/rtl/CMakeFiles/GotsanRuntimeCheck
```

(cherry picked from commit f0cdacd)

Author: MaskRay

compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp

@@ -216,7 +216,7 @@ void InitTlsSize() { }
 // On glibc x86_64, ThreadDescriptorSize() needs to be precise due to the usage
 // of g_tls_size. On other targets, ThreadDescriptorSize() is only used by lsan
 // to get the pointer to thread-specific data keys in the thread control block.
-#if (SANITIZER_FREEBSD || SANITIZER_LINUX) && !SANITIZER_ANDROID
+#if (SANITIZER_FREEBSD || SANITIZER_LINUX) && !SANITIZER_ANDROID && !SANITIZER_GO
 // sizeof(struct pthread) from glibc.
 static atomic_uintptr_t thread_descriptor_size;
 
@@ -319,7 +319,6 @@ static uptr TlsPreTcbSize() {
 }
 #endif
 
-#if !SANITIZER_GO
 namespace {
 struct TlsBlock {
   uptr begin, end, align;
@@ -407,9 +406,8 @@ __attribute__((unused)) static void GetStaticTlsBoundary(uptr *addr, uptr *size,
   *addr = ranges[l].begin;
   *size = ranges[r - 1].end - ranges[l].begin;
 }
-#endif  // !SANITIZER_GO
 #endif  // (x86_64 || i386 || mips || ...) && (SANITIZER_FREEBSD ||
-        // SANITIZER_LINUX) && !SANITIZER_ANDROID
+        // SANITIZER_LINUX) && !SANITIZER_ANDROID && !SANITIZER_GO
 
 #if SANITIZER_NETBSD
 static struct tls_tcb * ThreadSelfTlsTcb() {