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.cpp b/src/PSUEvent.cpp
index f8cee21..4f73cec 100644
--- a/src/PSUEvent.cpp
+++ b/src/PSUEvent.cpp
@@ -184,7 +184,7 @@
     inputDev.close();
 }
 
-void PSUSubEvent::setupRead(void)
+void PSUSubEvent::setupRead()
 {
     if (!readingStateGood(readState))
     {