diff --git a/include/llvm/Support/PathV1.h b/include/llvm/Support/PathV1.h
index 15f0441d1dc..e5a3c76458b 100644
--- a/include/llvm/Support/PathV1.h
+++ b/include/llvm/Support/PathV1.h
@@ -113,14 +113,6 @@ namespace sys {
       /// @brief Return the executable file suffix.
       static StringRef GetEXESuffix();
 
-      /// Return the suffix commonly used on file names that contain a shared
-      /// object, shared archive, or dynamic link library. Such files are
-      /// linked at runtime into a process and their code images are shared
-      /// between processes.
-      /// @returns The dynamic link library suffix for the current platform.
-      /// @brief Return the dynamic link library suffix.
-      static StringRef GetDLLSuffix();
-
       /// GetMainExecutable - Return the path to the main executable, given the
       /// value of argv[0] from program startup and the address of main itself.
       /// In extremis, this function may fail and return an empty path.
diff --git a/lib/Support/Path.cpp b/lib/Support/Path.cpp
index 09d2eadd51a..2e8223b6a17 100644
--- a/lib/Support/Path.cpp
+++ b/lib/Support/Path.cpp
@@ -68,10 +68,6 @@ Path::isObjectFile() const {
   return true;
 }
 
-StringRef Path::GetDLLSuffix() {
-  return &(LTDL_SHLIB_EXT[1]);
-}
-
 void
 Path::appendSuffix(StringRef suffix) {
   if (!suffix.empty()) {