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/PSUEvent.hpp b/src/PSUEvent.hpp
index 4c705a4..d761f45 100644
--- a/src/PSUEvent.hpp
+++ b/src/PSUEvent.hpp
@@ -53,7 +53,7 @@
     std::shared_ptr<std::set<std::string>> asserts;
     std::shared_ptr<std::set<std::string>> combineEvent;
     std::shared_ptr<bool> assertState;
-    void setupRead(void);
+    void setupRead();
 
   private:
     int value = 0;