Slightly smarter flexi update handling, plus extra nullchecks.

indra/newview/llvowater.cpp

@@ -37,7 +37,6 @@
 #include "imageids.h"
 #include "llviewercontrol.h"
 
-#include "llagent.h"
 #include "lldrawable.h"
 #include "lldrawpoolwater.h"
 #include "llface.h"
@@ -56,8 +55,6 @@ const BOOL gUseRoam = FALSE;
 
 ///////////////////////////////////
 
-#include "randgauss.h"
-
 template<class T> inline T LERP(T a, T b, F32 factor)
 {
 	return a + (b - a) * factor;