HTTP: remove auto-decoding of UTF-8 content
HTTP: remove auto-decoding of UTF-8 content

When READing via HTTP (without /string or /lines), no longer auto-decode
UTF-8 encoded content to a string!. Always return a binary! instead.

The auto-decoding feature removed by this commit lead to brittle code,
when developers testing with a site that by chance returned a string!
were lead to believe that an http:// READ always returns a string!.

This fixes CureCode issue #2027.

Fix as originally suggested by Graham Chiu.

kealist/ren-c,codebybrett/ren-c,codebybrett/ren-c,kealist/ren-c,mbk/ren-c,kealist/ren-c,giuliolunati/ren-c,draegtun/ren-c,codebybrett/ren-c,rebolsource/r3,kealist/ren-c,hostilefork/rebol,rebol/rebol,rebol/rebol,draegtun/ren-c,rebolsource/r3,draegtun/ren-c,draegtun/ren-c,earl/r3,rgchris/ren-c,giuliolunati/ren-c,hostilefork/rebol,hostilefork/rebol,rebolsource/r3,rgchris/ren-c,codebybrett/ren-c,hostilefork/rebol,codebybrett/ren-c,draegtun/ren-c,kealist/ren-c,rgchris/ren-c,hostilefork/rebol,rgchris/ren-c,kealist/ren-c,giuliolunati/ren-c,mbk/ren-c,rebol/rebol,codebybrett/ren-c,rgchris/ren-c,giuliolunati/ren-c,earl/r3,draegtun/ren-c,earl/r3,earl/r3,mbk/ren-c,rebol/rebol,mbk/ren-c,hostilefork/rebol,giuliolunati/ren-c