7181508: Remove GenerateNativeHeader on awt java file

Reviewed-by: ohair

jdk/src/share/classes/java/awt/image/DirectColorModel.java

@@ -27,7 +27,6 @@ package java.awt.image;
 
 import java.awt.color.ColorSpace;
 import java.awt.Transparency;
-import javax.tools.annotation.GenerateNativeHeader;
 
 /**
  * The <code>DirectColorModel</code> class is a <code>ColorModel</code>
@@ -107,8 +106,6 @@ import javax.tools.annotation.GenerateNativeHeader;
  * @see ColorModel#getRGBdefault
  *
  */
-/* No native methods here, but the constants are needed in the supporting JNI code */
-@GenerateNativeHeader
 public class DirectColorModel extends PackedColorModel {
     private int red_mask;
     private int green_mask;

jdk/src/share/classes/sun/awt/CharsetString.java

@@ -24,10 +24,6 @@
  */
 package sun.awt;
 
-import javax.tools.annotation.GenerateNativeHeader;
-
-/* No native methods here, but the constants are needed in the supporting JNI code */
-@GenerateNativeHeader
 public class CharsetString {
     /**
      * chars for this string.  See also offset, length.

jdk/src/share/classes/sun/java2d/pipe/RegionIterator.java

@@ -27,14 +27,10 @@ package sun.java2d.pipe;
 
 import java.awt.Rectangle;
 
-import javax.tools.annotation.GenerateNativeHeader;
-
 /**
  * This class defines the API for iterating through the bands
  * of a region object.
  */
-/* No native methods here, but the constants are needed in the supporting JNI code */
-@GenerateNativeHeader
 public class RegionIterator {
     Region region;
     int curIndex;

jdk/src/share/native/sun/awt/image/cvutils/img_globals.c

@@ -31,7 +31,6 @@
 #include "img_globals.h"
 
 #include "java_awt_image_IndexColorModel.h"
-#include "java_awt_image_DirectColorModel.h"
 #include "java_awt_Transparency.h"
 
 /*