Remove ancient (and unused) composite_primary_keys gem
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/._base.rb
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/base.rb
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/mysql.rb
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/oracle.rb
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/postgresql.rb
- [DH] vendor/gems/composite_primary_keys-2.2.2/lib/adapter_helper/sqlite3.rb