diff --git a/rtl/x86_64/mathuh.inc b/rtl/x86_64/mathuh.inc
index f415d9d0f7..238c8406f1 100644
--- a/rtl/x86_64/mathuh.inc
+++ b/rtl/x86_64/mathuh.inc
@@ -27,8 +27,3 @@ function SetPrecisionMode(const Precision: TFPUPrecisionMode): TFPUPrecisionMode
 function GetExceptionMask: TFPUExceptionMask;
 function SetExceptionMask(const Mask: TFPUExceptionMask): TFPUExceptionMask;
 procedure ClearExceptions(RaisePending: Boolean =true);
-
-
-procedure SetSSECSR(w : dword);
-function GetSSECSR : dword;
-