Remove unnecessary assert.h includes.

src/Common/Timer.cpp

@@ -22,8 +22,6 @@
 	#include <features.h>
 #endif
 
-#include <assert.h>
-
 namespace sw
 {
 	Timer::Timer()

src/Renderer/Clipper.cpp

@@ -16,7 +16,6 @@
 #include "Debug.hpp"
 
 #include <malloc.h>
-#include <assert.h>
 
 namespace sw
 {

src/Renderer/Renderer.cpp

@@ -29,7 +29,6 @@
 #include "Reactor/Reactor.hpp"
 
 #include <malloc.h>
-#include <assert.h>
 
 #undef max
 

src/Shader/PixelRoutine.cpp

@@ -20,8 +20,6 @@
 #include "Constants.hpp"
 #include "Debug.hpp"
 
-#include <assert.h>
-
 extern bool localShaderConstants;
 
 namespace sw