Revert "erlang R16B bottles"

This reverts commit a32dff3b85748c6c80aebd9c2ba9816139d04885.
Revert "erlang R16B"

This reverts commit 26050424dc603e1ed471053534c110ada25c75d5.
erlang: use archive URL
couchdb: depend on core erlang again

Fixes #18256, for now.