sensors: don't pass excess conn handler

We don't need to pass connection handler to setInitialProperties method
since it already part of the sensor class.

Tested: no changes in behaviour.
Signed-off-by: Andrei Kartashev <a.kartashev@yadro.com>
Change-Id: Icaaccbeaf14e22648a6a1bce381f0f0a606b0ddd
diff --git a/src/ExitAirTempSensor.cpp b/src/ExitAirTempSensor.cpp
index fd31473..58f7468 100644
--- a/src/ExitAirTempSensor.cpp
+++ b/src/ExitAirTempSensor.cpp
@@ -183,7 +183,7 @@
     association = objectServer.add_interface(
         "/xyz/openbmc_project/sensors/airflow/" + name, association::interface);
 
-    setInitialProperties(conn, sensor_paths::unitCFM);
+    setInitialProperties(sensor_paths::unitCFM);
 
     pwmLimitIface =
         objectServer.add_interface("/xyz/openbmc_project/control/pwm_limit",
@@ -526,7 +526,7 @@
     association = objectServer.add_interface(
         "/xyz/openbmc_project/sensors/temperature/" + name,
         association::interface);
-    setInitialProperties(conn, sensor_paths::unitDegreesC);
+    setInitialProperties(sensor_paths::unitDegreesC);
 }
 
 ExitAirTempSensor::~ExitAirTempSensor()