Ruby

[ruby/openssl] pkey: remove deprecated parameter setters

Remove the following methods, which have been marked as deprecated and
produced a warning since version 2.0, commit 7ea72f1f5084 ("adapt
OpenSSL::PKey to OpenSSL 1.1.0 opaque structs", 2016-06-05).

• OpenSSL::PKey::RSA#n=, #e=, #d=, #p=, #q=, #dmp1=, #dmq1=, #iqmp=
• OpenSSL::PKey::DSA#p=, #q=, #g=, #priv_key=, #pub_key=
• OpenSSL::PKey::DH#p=, #g=, #priv_key=, #pub_key=

These methods could only work with OpenSSL 1.0.2 or older, which is now
EOL.

https://github.com/ruby/openssl/commit/2334862cc0