Revert "Serve ad agents declaration at /.well-known/adagents.json for demo" (#235)

Author: jmarc101

demos/.well-known/adagents.json

@@ -24,4 +24,3 @@ COPY --chmod=0444 ./index.html ./index.html
 COPY --chmod=0444 ./index-nocookies.html ./index-nocookies.html
 COPY --chmod=0444 ./css/ ./css/
 COPY --chmod=0444 ./images/ ./images/
-COPY --chmod=0444 ./well-known/adagents.json ./well-known/adagents.json