Fixed urbdrc server notification of channel close

Fixed urbdrc server notification of channel close

There was a recursion issue with usb device channel closing and
local redirected device removal.
If the local redirected device is removed due to hotplug events,
the device channel needs to be closed, which in turn checks if
the local device list contains the device. Ensure that the
channel close code is only executed when not called from the
channel side.

(cherry picked from commit 93ee13245ce7fe78ffbc9694bfac3da30844296a)