undef rebar_utils cleanup_code_path when running eunit tests

[nuex]

$ rebar3 eunit
...
===> Uncaught error in rebar_core. Run with DEBUG=1 to see stacktrace
===> Uncaught error: {'EXIT',
                             {undef,
                              [{rebar_utils,cleanup_code_path,
...

Then, with grep:

$ grep -r cleanup_code_path /tmp/rebar3/
/tmp/rebar3/src/rebar_prv_eunit.erl:            true = rebar_utils:cleanup_code_path(CodePath),
/tmp/rebar3/src/rebar_prv_eunit.erl:    true = rebar_utils:cleanup_code_path(CodePath),

[tsloughter]

So I just added that function back to rebar_utils, but the eunit provider is the least fixed up of all the providers. I almost didn't even add it back yet. So any help getting it updated for rebar3 would be great :)

[nuex]

Did you see my PR for this @tsloughter?

I'm doing simple eunit tests because that's what I'm familiar with. If I run into any more issues I'll try to attach PRs with a fix to them.

[tsloughter]

Oh, woops, I missed the PR :). Thanks! I'll pay attention to the PRs better next time, hehe.

[nuex]

Fixed via 33e4b7e.

[nuex]

No problem! Thanks!