Plane: use ahrs singleton to log ATT, POS and AHRS2

ArduPlane/Log.cpp

@@ -27,7 +27,7 @@ void Plane::Log_Write_Attitude(void)
         targets *= degrees(100.0f);
         logger.Write_AttitudeView(*quadplane.ahrs_view, targets);
     } else {
-        logger.Write_Attitude(ahrs, targets);
+        logger.Write_Attitude(targets);
     }
     if (quadplane.in_vtol_mode() || quadplane.in_assisted_flight()) {
         // log quadplane PIDs separately from fixed wing PIDs
@@ -44,12 +44,12 @@ void Plane::Log_Write_Attitude(void)
 
 #if AP_AHRS_NAVEKF_AVAILABLE
     AP::ahrs_navekf().Log_Write();
-    logger.Write_AHRS2(ahrs);
+    logger.Write_AHRS2();
 #endif
 #if CONFIG_HAL_BOARD == HAL_BOARD_SITL
     sitl.Log_Write_SIMSTATE();
 #endif
-    logger.Write_POS(ahrs);
+    logger.Write_POS();
 }
 
 // do logging at loop rate