parallel_emerge: drop o3d/icedtea references

We don't build either of these packages anymore, so drop them.

BUG=chromium:334711
TEST=`./buildbot/run_tests` passes
TEST=`./build_packages --board=link` still works

Change-Id: I0709ebd97028a20703244bad72ca5e4c53bee66b
Reviewed-on: https://chromium-review.googlesource.com/194924
Reviewed-by: David James <davidjames@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/parallel_emerge.py b/scripts/parallel_emerge.py
index 326802c..3fa2ee1 100644
--- a/scripts/parallel_emerge.py
+++ b/scripts/parallel_emerge.py
@@ -261,8 +261,7 @@
     # These packages take a really long time to build, so, for expediency, we
     # are blacklisting them from automatic rebuilds because one of their
     # dependencies needs to be recompiled.
-    for pkg in ("chromeos-base/chromeos-chrome", "media-plugins/o3d",
-                "dev-java/icedtea"):
+    for pkg in ("chromeos-base/chromeos-chrome",):
       emerge_args.append("--rebuild-exclude=%s" % pkg)
 
     return emerge_args