Remove PQsslpassword function

Andrew Dunstan <andrew@dunslane.net>

Commit: e75b1e33710249d1699850920c0390fb08ea5673
Author: Andrew Dunstan <andrew@dunslane.net>
Date: 2019-12-07T14:20:53Z
Releases: 13.0
Remove PQsslpassword function

This partially reverts commit 4dc6355210.

The information returned by the function can be obtained by calling
PQconninfo(), so the function is redundant.

Files

Documentation touched