Revert "rest_dbus: run JSON response format plugin conditionally"
Revert "rest_dbus: run JSON response format plugin conditionally"

This reverts commit 1444fd8c9e9b0807b4f3682236bec7cb3eedeebf.

No longer needed after 944cd04.

Change-Id: I8b19d6506e8ffb6c51b145e8306498621dd53be0
Signed-off-by: Brad Bishop <713d098c0be4c8fd2bf36a94cd08699466677ecd@fuzziesquirrel.com>

openbmc/phosphor-rest-server,openbmc/phosphor-rest-server