🔀 Merge pull request #534 from ruby/drop-automatic-VerifyCallbackProc

💥 Don't set `verify_callback` to `VerifyCallbackProc`

Author: nevans

lib/net/imap.rb

@@ -3780,9 +3780,6 @@ def build_ssl_ctx(ssl)
         params = (Hash.try_convert(ssl) || {}).freeze
         context = OpenSSL::SSL::SSLContext.new
         context.set_params(params)
-        if defined?(VerifyCallbackProc)
-          context.verify_callback = VerifyCallbackProc
-        end
         context.freeze
         [params, context]
       else