Remove all public mention of RS graphics from docs.

Change-Id: Ie43b5fb0353149aa9af433b6f5c5141349388ea0
diff --git a/graphics/java/android/renderscript/Font.java b/graphics/java/android/renderscript/Font.java
index 8a49abb..1a8d5bf 100644
--- a/graphics/java/android/renderscript/Font.java
+++ b/graphics/java/android/renderscript/Font.java
@@ -30,8 +30,9 @@
 import android.util.TypedValue;
 
 /**
+ * @hide
  * @deprecated in API 16
- * <p>This class gives users a simple way to draw hardware accelerated text. 
+ * <p>This class gives users a simple way to draw hardware accelerated text.
  * Internally, the glyphs are rendered using the Freetype library and an internal cache of
  * rendered glyph bitmaps is maintained. Each font object represents a combination of a typeface,
  * and point size. You can create multiple font objects to represent styles such as bold or italic text,
@@ -43,7 +44,7 @@
  * render large batches of text in sequence. It is also more efficient to render multiple
  * characters at once instead of one by one to improve draw call batching.</p>
  * <p>Font color and transparency are not part of the font object and you can freely modify
- * them in the script to suit the user's rendering needs. Font colors work as a state machine. 
+ * them in the script to suit the user's rendering needs. Font colors work as a state machine.
  * Every new call to draw text uses the last color set in the script.</p>
  **/
 public class Font extends BaseObj {