diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 9fa828408d..f322e6459a 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -1101,43 +1101,6 @@ std::string cmSystemTools::GetComspec()
 
 #endif
 
-std::string cmSystemTools::GetRealPathResolvingWindowsSubst(
-  const std::string& path, std::string* errorMessage)
-{
-#ifdef _WIN32
-  // uv_fs_realpath uses Windows Vista API so fallback to kwsys if not found
-  std::string resolved_path;
-  uv_fs_t req;
-  int err = uv_fs_realpath(nullptr, &req, path.c_str(), nullptr);
-  if (!err) {
-    resolved_path = std::string((char*)req.ptr);
-    cmSystemTools::ConvertToUnixSlashes(resolved_path);
-    // Normalize to upper-case drive letter as GetActualCaseForPath does.
-    if (resolved_path.size() > 1 && resolved_path[1] == ':') {
-      resolved_path[0] = toupper(resolved_path[0]);
-    }
-  } else if (err == UV_ENOSYS) {
-    resolved_path = cmsys::SystemTools::GetRealPath(path, errorMessage);
-  } else if (errorMessage) {
-    LPSTR message = nullptr;
-    DWORD size = FormatMessageA(
-      FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
-        FORMAT_MESSAGE_IGNORE_INSERTS,
-      nullptr, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&message,
-      0, nullptr);
-    *errorMessage = std::string(message, size);
-    LocalFree(message);
-
-    resolved_path = "";
-  } else {
-    resolved_path = path;
-  }
-  return resolved_path;
-#else
-  return cmsys::SystemTools::GetRealPath(path, errorMessage);
-#endif
-}
-
 std::string cmSystemTools::GetRealPath(const std::string& path,
                                        std::string* errorMessage)
 {
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index a17dca83a7..4f62aee639 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -605,11 +605,7 @@ public:
   static std::string GetComspec();
 #endif
 
-  /** Get the real path for a given path, removing all symlinks.
-      This variant of GetRealPath also works on Windows but will
-      resolve subst drives too.  */
-  static std::string GetRealPathResolvingWindowsSubst(
-    const std::string& path, std::string* errorMessage = nullptr);
+  /** Get the real path for a given path, removing all symlinks.  */
   static std::string GetRealPath(const std::string& path,
                                  std::string* errorMessage = nullptr);
 
diff --git a/Source/cmTimestamp.cxx b/Source/cmTimestamp.cxx
index 4d8bc027d8..cb6eb6fbd0 100644
--- a/Source/cmTimestamp.cxx
+++ b/Source/cmTimestamp.cxx
@@ -62,8 +62,7 @@ std::string cmTimestamp::FileModificationTime(const char* path,
                                               const std::string& formatString,
                                               bool utcFlag) const
 {
-  std::string real_path =
-    cmSystemTools::GetRealPathResolvingWindowsSubst(path);
+  std::string real_path = cmSystemTools::GetRealPath(path);
 
   if (!cmsys::SystemTools::FileExists(real_path)) {
     return std::string();