Don't include <machine/cpu-features.h>.

We're not using it.

Change-Id: Ic128cf9297e1627c839c48f1954c19d7070654d7
diff --git a/libpixelflinger/scanline.cpp b/libpixelflinger/scanline.cpp
index f48e1d0..aa18360 100644
--- a/libpixelflinger/scanline.cpp
+++ b/libpixelflinger/scanline.cpp
@@ -26,10 +26,6 @@
 #include <cutils/memory.h>
 #include <cutils/log.h>
 
-#ifdef __arm__
-#include <machine/cpu-features.h>
-#endif
-
 #include "buffer.h"
 #include "scanline.h"