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/frameworks/openflow/plugins/ryu.bro.rst

@@ -0,0 +1,50 @@
+:tocdepth: 3
+
+base/frameworks/openflow/plugins/ryu.bro
+========================================
+.. bro:namespace:: OpenFlow
+
+OpenFlow plugin for the Ryu controller.
+
+:Namespace: OpenFlow
+:Imports: :doc:`base/frameworks/openflow </scripts/base/frameworks/openflow/index>`, :doc:`base/utils/active-http.bro </scripts/base/utils/active-http.bro>`, :doc:`base/utils/exec.bro </scripts/base/utils/exec.bro>`, :doc:`base/utils/json.bro </scripts/base/utils/json.bro>`
+
+Summary
+~~~~~~~
+Redefinitions
+#############
+============================================================================ =
+:bro:type:`OpenFlow::ControllerState`: :bro:type:`record` :bro:attr:`&redef` 
+:bro:type:`OpenFlow::Plugin`: :bro:type:`enum`                               
+============================================================================ =
+
+Functions
+#########
+================================================= ===========================
+:bro:id:`OpenFlow::ryu_new`: :bro:type:`function` Ryu controller constructor.
+================================================= ===========================
+
+
+Detailed Interface
+~~~~~~~~~~~~~~~~~~
+Functions
+#########
+.. bro:id:: OpenFlow::ryu_new
+
+   :Type: :bro:type:`function` (host: :bro:type:`addr`, host_port: :bro:type:`count`, dpid: :bro:type:`count`) : :bro:type:`OpenFlow::Controller`
+
+   Ryu controller constructor.
+   
+
+   :host: Controller ip.
+   
+
+   :host_port: Controller listen port.
+   
+
+   :dpid: OpenFlow switch datapath id.
+   
+
+   :returns: OpenFlow::Controller record.
+
+