Remove openssl1.0
DESCRIPTION
stretch made OpenSSL 1.1 the default openssl package. Unfortunately, OpenSSL 1.0 was kept around, since so many things depended on it.
There should now be enough time that a firm stance can be taken toward not allowing OpenSSL 1.0 in Debian Buster.
Once TLS 1.3 is finalized, OpenSSL 1.2 will be released with TLS 1.3 support. Not supporting TLS 1.3 in buster would (in my opinion) make Debian appear less in other people's eyes. That means supporting OpenSSL 1.2, and having three OpenSSL packages (1.0, 1.1, and 1.2) is too much for one distribution.
DISTRIBUTION
buster