radxa0: bluetooth: Remove BTA_DM_COD

radxa0: bluetooth: Remove BTA_DM_COD

BTA_DM_COD can no longer be defined. Instead, the class of the device
is now set via bluetooth.device.class_of_device sysprop, which Google
configures for ATV devices (in device/google/atv project) as follows:

 Class of Device
   Service Class: 0x2C -> 44 (Rendering, Capturing, Audio)
   Major Device Class: 0x04 -> 4 (Audio/Video)
   Minor Device Class: 0x20 -> 32 (Set-top box) // default value, should be set to 0x3C for a TV

Change-Id: Ie54d6528d4e8a31a1f7a4e06ab577488e337c184