hg: jdk9/sandbox/jaxp: 8150256: removing xerces-related dead code

[chris.hegarty at oracle.com]

Changeset: f9abe02cceda
Author:    joehw
Date:      2017-05-09 10:34 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jaxp/rev/f9abe02cceda

8150256: removing xerces-related dead code
Reviewed-by: lancea

- src/java.xml/share/classes/com/sun/org/apache/xerces/internal/xinclude/XPointerElementHandler.java
- src/java.xml/share/classes/com/sun/org/apache/xerces/internal/xinclude/XPointerFramework.java
- src/java.xml/share/classes/com/sun/org/apache/xerces/internal/xinclude/XPointerSchema.java