remove useless semicolons

removes the semicolons after empty function definitions
these semicolons are optional, they don't do anything
this will have functions be consistently formatted
if we want to keep the option to have these on the same line like they
were before we should use the option AllowShortFunctionsOnASingleLine: None

servatrice/src/signalhandler.h

@@ -10,7 +10,9 @@ class SignalHandler : public QObject
     Q_OBJECT
 public:
     SignalHandler(QObject *parent = 0);
-    ~SignalHandler() {};
+    ~SignalHandler()
+    {
+    }
     static void sigHupHandler(int /* sig */);
     static void sigSegvHandler(int sig);