Deleting TRV "_TZE200_b6wax7g0"

[MattWestb]

The device is not compatible with the current quirk after some feedback from users and then looking on Z2M.
PR is made deleting it in Zigpy and also need doing the same in ZHA
zigpy/zha-device-handlers#1023

This partly reversing the #52065

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[probot-home-assistant]

Hey there @dmulcahey, @Adminiuga, mind taking a look at this pull request as it has been labeled with an integration (zha) you are listed as a code owner for? Thanks!
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[MattWestb]

For clarifying if the TRV type "_TZE200_b6wax7g0" is deleted in Zigbpy then this PR shall being merged and if its not being deleted this shall being deleted for not braking the support for the devices.

[MattWestb]

Its looks some users is using the quirk for there devices and need this for getting it working.
I have flagged it as draft and is releasing it then Zigpy devs have desired to delet or keeping the device in the quirk.
Also one user have making more patches for getting ti working but have not (yet) making one PR for adding it to the dev branch but it can being made and its flagged as not all function is working OK in the tuya TRV matrix zigpy/zigpy#653 (comment).

[MattWestb]

Still not cleared if the device staying as it is or the devs is helping the user fixing only one issue with the device.
Still for the moment its better having it left then removing it and all user have device that is not working at all.

[MattWestb]

The ZHA_Quirk is being updated with one fix for the MOES_TARGET_TEMP_ATTR: multiplier is corrected zigpy/zha-device-handlers#1082 so the device is staying in ZHA so i closing this PR.