Revert "Added documentation changes for ZM external trigger (#2350)" (#2359)

This reverts commit 8c8b44b64439cb0bc57508f41b8b97ec267ec552.

source/_components/switch.zoneminder.markdown

@@ -34,23 +34,6 @@ Configuration variables:
 - **command_on** (*Required*): The function you want the camera to run when turned on.
 - **command_off** (*Required*): The function you want the camera to run when turned off.
 
-External trigger mode:
-
-Zoneminder supports "External Trigger", where recording is triggered out-of-band (not with ZM's built-in motion detector).
-This is useful if your camera takes a while to 'warmup' and you use some external sensor like PIR motion detector.
-In this case camera can be kept in 'Nodect' state so it is warm and ready to capture. Once external trigger is activated camera starts recording immediately.
-This way you will not lose any frames and actually see how your S.W.A.T team deals with the intruder stepped into your nuclear facility.
-
-Configuration variables:
-
-- **ext_trigger_enable** (*Optional*): Enable external trigger switch. This will create 'trigger' switch for each of your monitors.
-- **ext_trigger_time** (*Optional*): How long ZM is to record once switch is triggered.
-- **ext_trigger_cause** (*Optional*): Text that will appear as 'cause' in ZM event log.
-
-Please note:
-* If you use trigger mode, it is recommended to keep camera in 'Nodect' state, so set both **command_on** and **command_off** to Nodect.
-* Make sure OPT_TRIGGER is enabled in ZM
-* If your trigger source can generate "no motion" event, you may want to set **ext_trigger_time** to some large value.
 
 <p class='note'>
 The default functions installed by ZoneMinder are: None, Monitor, Modect, Record, Mocord, Nodect.

source/_components/zoneminder.markdown

@@ -28,7 +28,6 @@ Configuration variables:
 - **ssl** (*Optional*): Set to `True` if your ZoneMinder installation is using SSL. Default to `False`.
 - **username** (*Optional*): Your ZoneMinder username.
 - **password** (*Optional*): Your ZoneMinder password. Required if `OPT_USE_AUTH` is enabled in ZM.
-- **trigger_port** (*Optional*): ZM's external trigger port. Default is 6802
 
 ### {% linkable_title Full configuration %}