Fixed some Javadoc warnings and obsoleted the old package list files
that were left over from Maven and Buck builds.

Change-Id: I51c43efd9dacd18d283724c8af59c142f5540a94
diff --git a/tools/build/onos-build-docs b/tools/build/onos-build-docs
index 3be4c0a..f13f47a 100755
--- a/tools/build/onos-build-docs
+++ b/tools/build/onos-build-docs
@@ -3,4 +3,4 @@
 # Builds the aggregate ONOS Java API docs.
 # -----------------------------------------------------------------------------
 
-SHLVL=1 bazel build //docs:external //docs:internal
+SHLVL=1 bazel build //docs:external # //docs:internal