build: fix some warnings

Fix a couple of warnings:

-Werror=unused-parameter
-Werror=non-virtual-dtor

so we can use meson's warning_level=3 and -Werror without build
failures.

Change-Id: Id3c15c2fee70799bee98a8d2890c33ab5ebfd563
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/power-sequencer/runtime_monitor.cpp b/power-sequencer/runtime_monitor.cpp
index 5d17eb9..fa9ecfe 100644
--- a/power-sequencer/runtime_monitor.cpp
+++ b/power-sequencer/runtime_monitor.cpp
@@ -40,7 +40,7 @@
 #endif
 }
 
-void RuntimeMonitor::onPowerLost(sdbusplus::message::message& msg)
+void RuntimeMonitor::onPowerLost(sdbusplus::message::message&)
 {
     log<level::INFO>("PGOOD failure detected.  Checking for faults.");