bridge_softmix: Removed unused parameter from check_binaural_position_change(.).

Found as a result of the function being passed an uninitalized variable by
clang.

ASTERISK-27550

Change-Id: I8af3bd84656b685a956d498459f8db3613f68954

bridges/bridge_softmix.c

@@ -1404,7 +1404,7 @@ static int softmix_mixing_loop(struct ast_bridge *bridge)
 		}
 
 #ifdef BINAURAL_RENDERING
-		check_binaural_position_change(bridge, softmix_data, bridge_channel);
+		check_binaural_position_change(bridge, softmix_data);
 #endif
 
 		/* Go through pulling audio from each factory that has it available */

bridges/bridge_softmix/bridge_softmix_binaural.c

@@ -465,9 +465,10 @@ void softmix_process_write_binaural_audio(struct softmix_channel *sc,
 }
 
 void check_binaural_position_change(struct ast_bridge *bridge,
-		struct softmix_bridge_data *softmix_data, struct ast_bridge_channel *bridge_channel)
+		struct softmix_bridge_data *softmix_data)
 {
 	unsigned int pos_change;
+	struct ast_bridge_channel *bridge_channel;
 
 	/*
 	 * We only check binaural things if binaural is activated by the config

bridges/bridge_softmix/include/bridge_softmix_internal.h

@@ -377,10 +377,9 @@ void softmix_process_write_binaural_audio(struct softmix_channel *sc,
  *
  * \param bridge The conference bridge.
  * \param softmix_data The data used by the softmix bridge.
- * \param bridge_channel The bridge channel.
  */
 void check_binaural_position_change(struct ast_bridge *bridge,
-		struct softmix_bridge_data *softmix_data, struct ast_bridge_channel *bridge_channel);
+		struct softmix_bridge_data *softmix_data);
 
 /*!
  * \brief Processes audio data with the binaural synthesis and adds the result to the mixing array.