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/IpmbSensor.hpp b/src/IpmbSensor.hpp
index 54a2a4a..58f20d5 100644
--- a/src/IpmbSensor.hpp
+++ b/src/IpmbSensor.hpp
@@ -91,12 +91,12 @@
                std::string& sensorTypeName);
     ~IpmbSensor() override;
 
-    void checkThresholds(void) override;
-    void read(void);
-    void init(void);
-    std::string getSubTypeUnits(void) const;
-    void loadDefaults(void);
-    void runInitCmd(void);
+    void checkThresholds() override;
+    void read();
+    void init();
+    std::string getSubTypeUnits() const;
+    void loadDefaults();
+    void runInitCmd();
     bool processReading(const std::vector<uint8_t>& data, double& resp);
     void parseConfigValues(const SensorBaseConfigMap& entry);
     bool sensorClassType(const std::string& sensorClass);
@@ -120,7 +120,7 @@
     ReadingFormat readingFormat = ReadingFormat::byte0;
 
   private:
-    void sendIpmbRequest(void);
+    void sendIpmbRequest();
     sdbusplus::asio::object_server& objectServer;
     boost::asio::steady_timer waitTimer;
     void ipmbRequestCompletionCb(const boost::system::error_code& ec,