ojluni: use the okhttp DefaultHostnameVerifier in HttpsURLConnection

DistinguishedNameParser was moved to frameworks/base in c/821104. It
remains to:
- consider whether we want tests for it (b/25882613)
- consider whether to submit tests exercising its functionality upstream
in okhttp (b/25881522)

Not cherrypicking from dev branch as the original CL to do it went wrong
and would need to cherrypick more changes

Change-Id: I181dedd1d031035f45d6dde8d8c3d5a086834174
4 files changed