Remove 'pause' and 'reset' buttons from arcyd dash

The 'pause' and 'reset' buttons were used to provide a way for users to
be able to directly 'emergency stop' or 'retry'.  Experience has proved
these to not be useful and they add complication.  Remove the buttons.

Test Plan:
$ ./precommit.sh
$ ./testbed/arcyd/loop_test.sh
$ ./testbed/arcyd/test_shell.sh
    $ cd ../arcyd
    $ arcyd arcyd-status-html var/status/arcyd_status.json http://localhost
abdweb_arcydcontent: make funcs private

Hide the functions in this module that aren't explicitly for external
consumption.

Test Plan:
$ ./precommit.sh