Get rid of the unused Sys_FPU_ClearStack

neo/sys/posix/posix_main.cpp

@@ -428,9 +428,6 @@ bool Sys_FPU_StackIsEmpty( void ) {
 	return true;
 }
 
-void Sys_FPU_ClearStack( void ) {
-}
-
 const char *Sys_FPU_GetState( void ) {
 	return "";
 }

neo/sys/sys_public.h

@@ -151,9 +151,6 @@ int				Sys_GetProcessorId( void );
 // returns true if the FPU stack is empty
 bool			Sys_FPU_StackIsEmpty( void );
 
-// empties the FPU stack
-void			Sys_FPU_ClearStack( void );
-
 // returns the FPU state as a string
 const char *	Sys_FPU_GetState( void );
 

neo/sys/win32/win_cpu.cpp

@@ -142,31 +142,6 @@ empty:
 #endif
 }
 
-/*
-===============
-Sys_FPU_ClearStack
-===============
-*/
-void Sys_FPU_ClearStack( void ) {
-#ifdef _MSC_VER
-	__asm {
-		mov			eax, statePtr
-		fnstenv		[eax]
-		mov			eax, [eax+8]
-		xor			eax, 0xFFFFFFFF
-		mov			edx, (3<<14)
-	emptyStack:
-		mov			ecx, eax
-		and			ecx, edx
-		jz			done
-		fstp		st
-		shr			edx, 2
-		jmp			emptyStack
-	done:
-	}
-#endif
-}
-
 /*
 ===============
 Sys_FPU_GetState