[classlib] jvmti.h in classlib

[Geir Magnusson Jr.]

Right now, we have two jvmti.h files (and jni.h files) in the project, 
one set in classlib, and one set in DRLVM.

Seems like the ones in classlib are broken - simply because I can build 
working jdwp binaries using the headers in DRLVM, and it won't compile 
when using the headers from DRLVM.

Now, I guess we can go figure out what's wrong, but is anyone married to 
the set in classlib?  I'm going to ignore them in the JDK build, but 
maybe we should just get rid of them?

geir