diff --git a/neo/sys/posix/posix_main.cpp b/neo/sys/posix/posix_main.cpp
index 47f53359..f10f402f 100644
--- a/neo/sys/posix/posix_main.cpp
+++ b/neo/sys/posix/posix_main.cpp
@@ -336,13 +336,6 @@ void Sys_SetClipboardData( const char *string ) {
 	Sys_Printf( "TODO: Sys_SetClipboardData\n" );
 }
 
-
-// stub pretty much everywhere - heavy calling
-void Sys_FlushCacheMemory(void *base, int bytes)
-{
-//  Sys_Printf("Sys_FlushCacheMemory stub\n");
-}
-
 bool Sys_FPU_StackIsEmpty( void ) {
 	return true;
 }
diff --git a/neo/sys/stub/sys_stub.cpp b/neo/sys/stub/sys_stub.cpp
index 60133e5d..b8c700fd 100644
--- a/neo/sys/stub/sys_stub.cpp
+++ b/neo/sys/stub/sys_stub.cpp
@@ -54,9 +54,6 @@ void	Sys_CreateThread( xthread_t function, void *parms, xthreadInfo& info, const
 void Sys_DestroyThread( xthreadInfo& info ) {
 }
 
-void	Sys_FlushCacheMemory( void *base, int bytes ) {
-}
-
 void Sys_Error( const char *error, ... ) {
 	va_list		argptr;
 	char		text[4096];
diff --git a/neo/sys/win32/win_main.cpp b/neo/sys/win32/win_main.cpp
index e5c46394..264c424c 100644
--- a/neo/sys/win32/win_main.cpp
+++ b/neo/sys/win32/win_main.cpp
@@ -70,17 +70,6 @@ void Sys_GetExeLaunchMemoryStatus( sysMemoryStats_t &stats ) {
 	stats = exeLaunchMemoryStats;
 }
 
-/*
-==================
-Sys_FlushCacheMemory
-
-On windows, the vertex buffers are write combined, so they
-don't need to be flushed from the cache
-==================
-*/
-void Sys_FlushCacheMemory( void *base, int bytes ) {
-}
-
 /*
 =============
 Sys_Error