Refactoring: sensor_listener class

Refactoring: sensor_listener class

-Remove listener_handler class
-Change not to use g_io_handler callback and channel class

Previous callstack is too complicated
-g_io_handler
--channel_event_handler->handle
---channel->read_sync
----channel_event_handler->read
-----listener_handler->read
------sensor_listener_channel_handler->read

New callstack
-listener_handler (it is added function, not previous class)
--sensor_listener->handle
---sensor_listener_channel_handler->read

Change-Id: Iba35390c6e27d67d0fdb1e54ffaacef2d7ac029f
Signed-off-by: TaeminYeom <taemin.yeom@samsung.com>