This removes `dbg.addr` support from the Coroutines transform. This effectively reverts the `dbg.addr`-only portions of19279ffc77and0b647fc529. Part of `dbg.addr` removal Discussed in https://discourse.llvm.org/t/what-is-the-status-of-dbg-addr/62898 Differential Revision: https://reviews.llvm.org/D144795