[PATCH] vtls: revert "receive max buffer" + add test case

[PATCH] vtls: revert "receive max buffer" + add test case

- add test_05_04 for requests using http/1.0, http/1.1 and h2 against an
  Apache resource that does an unclean TLS shutdown.
- revert special workarund in openssl.c for suppressing shutdown errors
  on multiplexed connections
- vlts.c restore to its state before 9a90c9dd64d2f03601833a70786d485851bd1b53

Fixes #12885
Fixes #12844

Closes #12848

Backported by Samuel Henrique <samueloph@debian.org>
  * Removed changes to files under tests/http/ which we don't have in our
    tarball.

Gbp-Pq: Name vtls_revert_receive_max_buffer_add_test_case.patch