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/.clang-tidy b/.clang-tidy
index d5699b1..da851c0 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -229,6 +229,7 @@
 modernize-make-shared,
 modernize-make-unique,
 modernize-raw-string-literal,
+modernize-redundant-void-arg,
 modernize-replace-auto-ptr,
 modernize-replace-random-shuffle,
 modernize-return-braced-init-list,