meta-iotqa: Remove Edison specific command from Bluetooth test

The platform isn't supported anymore and the command isn't needed with
current devices.

Signed-off-by: Simo Kuusela <simo.kuusela@intel.com>

Author: Simo Kuusela

meta-iotqa/lib/oeqa/runtime/sanity/comm_btcheck.py

@@ -34,9 +34,6 @@ def test_comm_btcheck(self):
         @param self
         @return
         '''
-        # un-block software rfkill lock
-        self.target.run('rfkill unblock all')
-        # This is special for edison platform
         # Collect system information as log
         self.target_collect_info("ifconfig")
         self.target_collect_info("hciconfig")