diff --git a/UefiCpuPkg/Include/Library/SmmCpuFeaturesLib.h b/UefiCpuPkg/Include/Library/SmmCpuFeaturesLib.h
index 54cae865a2..52160c7145 100644
--- a/UefiCpuPkg/Include/Library/SmmCpuFeaturesLib.h
+++ b/UefiCpuPkg/Include/Library/SmmCpuFeaturesLib.h
@@ -386,29 +386,4 @@ SmmCpuFeaturesCompleteSmmReadyToLock (
   VOID
   );
 
-/**
-  This API provides a method for a CPU to allocate a specific region for storing page tables.
-
-  This API can be called more once to allocate memory for page tables.
-
-  Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
-  allocated buffer.  The buffer returned is aligned on a 4KB boundary.  If Pages is 0, then NULL
-  is returned.  If there is not enough memory remaining to satisfy the request, then NULL is
-  returned.
-
-  This function can also return NULL if there is no preference on where the page tables are allocated in SMRAM.
-
-  @param  Pages                 The number of 4 KB pages to allocate.
-
-  @return A pointer to the allocated buffer for page tables.
-  @retval NULL      Fail to allocate a specific region for storing page tables,
-                    Or there is no preference on where the page tables are allocated in SMRAM.
-
-**/
-VOID *
-EFIAPI
-SmmCpuFeaturesAllocatePageTableMemory (
-  IN UINTN  Pages
-  );
-
 #endif