Docs: Remove docs not applicable in web client

Docs: Remove docs not applicable in web client

A few docs chapters relate to features that don't exist (yet) in the web
client, so this commit removes those from the table of contents
(root*.adoc).

Also, duplicate content was found during the web client docs review, so
this commit removes the nearly identical docs file and replaces its
references with references to the slightly better version of the file.

Signed-off-by: Remington Steed <rjs7@calvin.edu>