Remove unnecessary locks from...

Remove unnecessary locks from RobotUnitModule::Devices::getNumberOfControlDevices/getNumberOfSensorDevices

source/RobotAPI/components/units/RobotUnit/RobotUnitModules/RobotUnitModuleDevices.cpp

@@ -68,7 +68,6 @@ namespace armarx
         {
             throwIfInControlThread(__FUNCTION__);
             throwIfDevicesNotReady(__FUNCTION__);
-            std::lock_guard<MutexType> guard {controlDevicesMutex};
             return controlDevices.size();
         }
 
@@ -76,7 +75,6 @@ namespace armarx
         {
             throwIfInControlThread(__FUNCTION__);
             throwIfDevicesNotReady(__FUNCTION__);
-            std::lock_guard<MutexType> guard {sensorDevicesMutex};
             return sensorDevices.size();
         }