clean-up surfaceflinger a bit

get rid of the glDrawTexi path and use floating points instead of fixed point maths

Change-Id: I3aa9ce2dc082f702160e605a16ba5fe987cdf087
diff --git a/libs/surfaceflinger/LayerBase.h b/libs/surfaceflinger/LayerBase.h
index 62ec839..4ff1927 100644
--- a/libs/surfaceflinger/LayerBase.h
+++ b/libs/surfaceflinger/LayerBase.h
@@ -278,7 +278,7 @@
                 bool            mTransformed;
                 bool            mUseLinearFiltering;
                 int32_t         mOrientation;
-                GLfixed         mVertices[4][2];
+                GLfloat         mVertices[4][2];
                 Rect            mTransformedBounds;
                 int             mLeft;
                 int             mTop;