* include/quick-threads.h (_Jv_ThreadCancel): Removed.
	(_Jv_ThreadDestroy): Likewise.
	* include/no-threads.h (_Jv_ThreadCancel): Removed.
	(_Jv_ThreadDestroy): Likewise.
	* include/posix-threads.h (struct _Jv_Thread_t): Removed
	`exception' field.
	(_Jv_ThreadCancel): Removed decl.
	(_Jv_ThreadDestroy): Removed.
	* posix-threads.cc (_Jv_ThreadCancel): Removed.
	(throw_cleanup): Removed.
	(really_start): Don't push or pop cleanup.
	(_Jv_ThreadInitData): Don't initialize `exception' field.
	* java/lang/Thread.java (stop): Officially unimplemented.
	* java/lang/natThread.cc (stop): Officially unimplemented.

From-SVN: r30392