Remove obsolete pragma statements

These pragma statements used to guard against compiler warnings in Sk..
code. They are no longer necessary.

Test: make
Change-Id: I9f7f88276edb546ba08c7344c142eb487a04f978

libs/input/PointerController.cpp

@@ -24,15 +24,11 @@
 
 #include <log/log.h>
 
-// ToDo: Fix code to be warning free
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wunused-parameter"
 #include <SkBitmap.h>
 #include <SkCanvas.h>
 #include <SkColor.h>
 #include <SkPaint.h>
 #include <SkBlendMode.h>
-#pragma GCC diagnostic pop
 
 namespace android {