--- a/src/hotspot/os/windows/os_windows.cpp	Wed Oct 16 14:32:17 2019 -0700
+++ b/src/hotspot/os/windows/os_windows.cpp	Thu Oct 17 00:00:13 2019 +0200
@@ -826,11 +826,6 @@
   } __except(EXCEPTION_EXECUTE_HANDLER) {}
 }
 
-bool os::distribute_processes(uint length, uint* distribution) {
-  // Not yet implemented.
-  return false;
-}
-
 bool os::bind_to_processor(uint processor_id) {
   // Not yet implemented.
   return false;
@@ -911,8 +906,6 @@
 }
 
 bool os::supports_vtime() { return true; }
-bool os::enable_vtime() { return false; }
-bool os::vtime_enabled() { return false; }
 
 double os::elapsedVTime() {
   FILETIME created;
@@ -3904,12 +3897,6 @@
   _setmode(_fileno(stderr), _O_BINARY);
 }
 
-
-bool os::is_debugger_attached() {
-  return IsDebuggerPresent() ? true : false;
-}
-
-
 void os::wait_for_keypress_at_exit(void) {
   if (PauseAtExit) {
     fprintf(stderr, "Press any key to continue...\n");