Drop MtrrLibIsPowerOfTwo function, use the new IS_POW2() macro instead.

The ASSERT() removed (inside MtrrLibIsPowerOfTwo) is superfluous,
another ASSERT() a few lines up in MtrrLibCalculateMtrrs() already
guarantees that Length can not be zero at this point.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
index e5c862c83d61..dd0b668d7782 100644
--- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
+++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
@@ -1253,21 +1253,6 @@ MtrrLibLowestType (
   return (MTRR_MEMORY_CACHE_TYPE)Type;
 }
 
-/**
-  Return TRUE when the Operand is exactly power of 2.
-
-  @retval TRUE  Operand is exactly power of 2.
-  @retval FALSE Operand is not power of 2.
-**/
-BOOLEAN
-MtrrLibIsPowerOfTwo (
-  IN     UINT64  Operand
-  )
-{
-  ASSERT (Operand != 0);
-  return (BOOLEAN)((Operand & (Operand - 1)) == 0);
-}
-
 /**
   Calculate the subtractive path from vertex Start to Stop.
 
@@ -1638,7 +1623,7 @@ MtrrLibCalculateMtrrs (
           break;
         }
 
-        if ((Weight[M (Start, Stop)] == MAX_WEIGHT) && MtrrLibIsPowerOfTwo (Length)) {
+        if ((Weight[M (Start, Stop)] == MAX_WEIGHT) && IS_POW2 (Length)) {
           if (MtrrLibGetNumberOfTypes (
                 Ranges,
                 RangeCount,
--
2.39.2