Remove broxygen Sphinx integration

The broxygen-generated files now live in the git repo, have tests
that check that they are up-to-date, and a script to re-generate
them on-demand.

doc/scripts/base/utils/json.bro.rst

@@ -0,0 +1,39 @@
+:tocdepth: 3
+
+base/utils/json.bro
+===================
+
+Functions to assist with generating JSON data from Bro data scructures.
+
+:Imports: :doc:`base/utils/strings.bro </scripts/base/utils/strings.bro>`
+
+Summary
+~~~~~~~
+Functions
+#########
+======================================= ============================================================
+:bro:id:`to_json`: :bro:type:`function` A function to convert arbitrary Bro data into a JSON string.
+======================================= ============================================================
+
+
+Detailed Interface
+~~~~~~~~~~~~~~~~~~
+Functions
+#########
+.. bro:id:: to_json
+
+   :Type: :bro:type:`function` (v: :bro:type:`any`, only_loggable: :bro:type:`bool` :bro:attr:`&default` = ``F`` :bro:attr:`&optional`, field_escape_pattern: :bro:type:`pattern` :bro:attr:`&default` = ``/^?(^_)$?/`` :bro:attr:`&optional`) : :bro:type:`string`
+
+   A function to convert arbitrary Bro data into a JSON string.
+   
+
+   :v: The value to convert to JSON.  Typically a record.
+   
+
+   :only_loggable: If the v value is a record this will only cause
+                  fields with the &log attribute to be included in the JSON.
+   
+
+   :returns: a JSON formatted string.
+
+