[DebugInfo] Remove `dbg.addr` from Coroutines

This removes `dbg.addr` support from the Coroutines transform. This effectively
reverts the `dbg.addr`-only portions of 19279ffc
and 0b647fc5.

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