remove obsolete aws_credentials.yml
remove obsolete aws_credentials.yml

(went to secrets.yml)
elgrillo83/cfb-hasenheide,elgrillo83/cfb-hasenheide,elgrillo83/cfb-hasenheide,cfb-hasenheide/cfb-hasenheide,cfb-hasenheide/cfb-hasenheide,elgrillo83/cfb-hasenheide,cfb-hasenheide/cfb-hasenheide,cfb-hasenheide/cfb-hasenheide