hg: build-infra/jdk8/jdk: Added some missing rm's of $@. Changes some rules to use $@.temp pattern.

[kelly.ohair at oracle.com]

Changeset: 4b61791faf84
Author:    ohair
Date:      2012-09-05 17:25 -0700
URL:       http://hg.openjdk.java.net/build-infra/jdk8/jdk/rev/4b61791faf84

Added some missing rm's of $@. Changes some rules to use $@.temp pattern.
Windows builds are having issues in this make logic.

! makefiles/CreateJars.gmk