Remove unnecessary header includes.

Change-Id: If1a8a581a63e801ec3855c554f10dabd67e8a4fd
Reviewed-on: https://swiftshader-review.googlesource.com/4400
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
diff --git a/src/Common/Timer.cpp b/src/Common/Timer.cpp
index abed7f1..b2bbd1b 100644
--- a/src/Common/Timer.cpp
+++ b/src/Common/Timer.cpp
@@ -19,7 +19,6 @@
 #else
 	#include <sys/time.h>
 	#include <x86intrin.h>
-	#include <features.h>
 #endif
 
 namespace sw
diff --git a/src/Renderer/Clipper.cpp b/src/Renderer/Clipper.cpp
index e2bb617..d575bc3 100644
--- a/src/Renderer/Clipper.cpp
+++ b/src/Renderer/Clipper.cpp
@@ -15,8 +15,6 @@
 #include "Renderer.hpp"
 #include "Debug.hpp"
 
-#include <malloc.h>
-
 namespace sw
 {
 	Clipper::Clipper()
diff --git a/src/Renderer/Context.cpp b/src/Renderer/Context.cpp
index 0547c6f..925c76e 100644
--- a/src/Renderer/Context.cpp
+++ b/src/Renderer/Context.cpp
@@ -20,7 +20,6 @@
 #include "Debug.hpp"
 
 #include <string.h>
-#include <malloc.h>
 
 namespace sw
 {
diff --git a/src/Renderer/Renderer.cpp b/src/Renderer/Renderer.cpp
index 6487ec5..6ad2be3 100644
--- a/src/Renderer/Renderer.cpp
+++ b/src/Renderer/Renderer.cpp
@@ -28,8 +28,6 @@
 #include "Debug.hpp"
 #include "Reactor/Reactor.hpp"
 
-#include <malloc.h>
-
 #undef max
 
 bool disableServer = true;