revert cdf8949 (couch_util:rfc1123_date)
revert cdf8949 (couch_util:rfc1123_date)

this got fixed in R14B02 as OTP-9087

COUCHDB-627

fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb