diff --git a/src/coreclr/utilcode/utsem.cpp b/src/coreclr/utilcode/utsem.cpp
index 0dcb7dc0794b49..1367a969e4f0b3 100644
--- a/src/coreclr/utilcode/utsem.cpp
+++ b/src/coreclr/utilcode/utsem.cpp
@@ -195,7 +195,7 @@ HRESULT UTSemReadWrite::LockRead()
     // holding this lock.
     IncCantStopCount();
 
-    // First do some spinning - copied from file:..\VM\crst.cpp#CrstBase::SpinEnter
+    // First do some spinning
     for (DWORD iter = 0; iter < g_SpinConstants.dwRepetitions; iter++)
     {
         DWORD i = g_SpinConstants.dwInitialDuration;
@@ -287,7 +287,7 @@ HRESULT UTSemReadWrite::LockWrite()
     // holding this lock.
     IncCantStopCount();
 
-    // First do some spinning - copied from file:..\VM\crst.cpp#CrstBase::SpinEnter
+    // First do some spinning
     for (DWORD iter = 0; iter < g_SpinConstants.dwRepetitions; iter++)
     {
         DWORD i = g_SpinConstants.dwInitialDuration;
diff --git a/src/coreclr/vm/crst.h b/src/coreclr/vm/crst.h
index dd4cdef5a9becc..12bdad22224cba 100644
--- a/src/coreclr/vm/crst.h
+++ b/src/coreclr/vm/crst.h
@@ -168,8 +168,6 @@ class CrstBase
     void Enter(INDEBUG(NoLevelCheckFlag noLevelCheckFlag = CRST_LEVEL_CHECK));
     void Leave();
 
-    void SpinEnter();
-
 #ifndef DACCESS_COMPILE
     DEBUG_NOINLINE static void AcquireLock(CrstBase *c) {
         WRAPPER_NO_CONTRACT;