Review request for 7016707 "Remove the BootClassLoaderHook for jkernel support"

[Mandy Chung]

 7016707: Remove the BootClassLoaderHook for jkernel support
Webrev at:
   http://cr.openjdk.java.net/~mchung/7016707/webrev.00/

The sun.jkernel.* classes have been removed from JDK 7:
   http://hg.openjdk.java.net/jdk7/jdk7/jdk/rev/e4802c87e5c7

This fix is to remove sun.misc.BootClassLoaderHook that was added to 
remove classloader dependency on jkernel:
   http://hg.openjdk.java.net/jdk7/tl/jdk/rev/c499401bc138

Thanks
Mandy