Rollback of commit e87849b8d391af8f5d98e3a91e680e88a1264b64.
Rollback of commit e87849b8d391af8f5d98e3a91e680e88a1264b64.

*** Reason for rollback ***

Prerequisite for rolling back j2objc base workspace change

*** Original change description ***

Remove base_workspace from bazel setup

I also removed a couple places the documentation referred to it incorrectly.
There are still a couple of blog posts that mention it, but that seemed okay.

RELNOTES: A bazelrc with --package_path set is no longer required for Bazel to
find its tools. This also means that building //... should work to build
everything in the workspace without including Bazel's own targets.

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MOS_MIGRATED_REVID=113164089

davidzchen/bazel-website,davidzchen/bazel-website,bazelbuild/bazel-website,davidzchen/bazel-website,bazelbuild/bazel-website,bazelbuild/bazel-website,davidzchen/bazel-website