Remove sequel/extensions/database_in_after_connect.rb
Remove sequel/extensions/database_in_after_connect.rb

This duplicates lib/sequelizer/monkey_patches/database_in_after_connect.rb
and is a monkey patch and not an extension.  If you did:

  Sequel.extension :database_in_after_connect

things would break because it the file doesn't register the
:database_in_after_connect extension.

outcomesinsights/sequelizer