The job of queue_output_config is now just to fill out a
wlr_output_state according to the output configuration, but it still has
a lot of logging from before we had wlr_output_state or the new modeset
logic, when queue_output_state instead touched the implicit pending
state of wlr_output.
Whatever debug logs it had would already be covered by the output state
debug logs or the command debug logs, so let's just remove it.