Drop CI for OpenSSL 1.0.2 (#953)

* Drop CI for OpenSSL 1.0.2

* Delete code for coverage reasons

* Bump minimum cryptography version
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5df0a05..9f58d78 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -11,10 +11,11 @@
 Backward-incompatible changes:
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+- The minimum ``cryptography`` version is now 3.2.
 - Remove deprecated ``OpenSSL.tsafe`` module.
 - Removed deprecated ``OpenSSL.SSL.Context.set_npn_advertise_callback``, ``OpenSSL.SSL.Context.set_npn_select_callback``, and ``OpenSSL.SSL.Connection.get_next_proto_negotiated``.
 - Drop support for Python 3.4
-- Drop support for OpenSSL 1.0.1
+- Drop support for OpenSSL 1.0.1 and 1.0.2
 
 Deprecations:
 ^^^^^^^^^^^^^