Add modernize-redundant-void-arg

Enable this check and fix the failures.

Change-Id: I89b13daf1161be40564367562bb9c8c0c459e1d0
Signed-off-by: Ed Tanous <ed@tanous.net>
diff --git a/src/NVMeSensor.hpp b/src/NVMeSensor.hpp
index 7f2f114..a7cfba1 100644
--- a/src/NVMeSensor.hpp
+++ b/src/NVMeSensor.hpp
@@ -29,5 +29,5 @@
     sdbusplus::asio::object_server& objServer;
     unsigned int scanDelay{0};
 
-    void checkThresholds(void) override;
+    void checkThresholds() override;
 };