diff --git a/LPTStrTestNative.cpp b/LPTStrTestNative.cpp
deleted file mode 100644
index 52d360228018..000000000000
--- a/LPTStrTestNative.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-#include "../Native/StringMarshalingNative.h"
-
-using StringType = LPWSTR;
-using Tests = StringMarshalingTests<StringType, TP_slen>;
-
-#define FUNCTION_NAME __FUNCTIONW__
-
-#include "../Native/StringTestEntrypoints.inl"
-
-// Verify that we append extra null terminators to our StringBuilder native buffers.
-// Although this is a hidden implementation detail, it would be breaking behavior to stop doing this
-// so we have a test for it. In particular, this detail prevents us from optimizing marshalling StringBuilders by pinning.
-extern "C" DLL_EXPORT BOOL STDMETHODCALLTYPE Verify_NullTerminators_PastEnd(LPCWSTR buffer, int length)
-{
-    return buffer[length+1] == W('\0');
-}
-
-struct ByValStringInStructAnsi
-{
-    char str[20];
-};
-
-struct ByValStringInStructUnicode
-{
-    WCHAR str[20];
-};
-
-extern "C" DLL_EXPORT BOOL STDMETHODCALLTYPE MatchFuncNameAnsi(ByValStringInStructAnsi str)
-{
-    return StringMarshalingTests<char*, strlen>::Compare(__func__, str.str);
-}
-
-extern "C" DLL_EXPORT BOOL STDMETHODCALLTYPE MatchFuncNameUni(ByValStringInStructUnicode str)
-{
-    return StringMarshalingTests<LPWSTR, TP_slen>::Compare(__FUNCTIONW__, str.str);
-}
-
-extern "C" DLL_EXPORT void STDMETHODCALLTYPE ReverseByValStringAnsi(ByValStringInStructAnsi* str)
-{
-    StringMarshalingTests<char*, strlen>::ReverseInplace(str->str);
-}
-
-extern "C" DLL_EXPORT void STDMETHODCALLTYPE ReverseByValStringUni(ByValStringInStructUnicode* str)
-{
-    StringMarshalingTests<LPWSTR, TP_slen>::ReverseInplace(str->str);
-}