Remove const from signal slot connects

src/core/application.cpp

@@ -65,7 +65,6 @@
 #include "scrobbler/audioscrobbler.h"
 
 #include "internet/internetservices.h"
-#include "internet/internetsearch.h"
 
 #ifdef HAVE_SUBSONIC
 #  include "subsonic/subsonicservice.h"

src/core/application.h

@@ -33,8 +33,6 @@
 
 #include "settings/settingsdialog.h"
 
-using std::unique_ptr;
-
 class QThread;
 
 class TaskManager;
@@ -58,7 +56,6 @@ class CurrentAlbumCoverLoader;
 class LyricsProviders;
 class AudioScrobbler;
 class InternetServices;
-class InternetSearch;
 #ifdef HAVE_MOODBAR
 class MoodbarController;
 class MoodbarLoader;

src/core/qtfslistener.cpp

@@ -28,7 +28,7 @@
 
 QtFSListener::QtFSListener(QObject *parent) : FileSystemWatcherInterface(parent), watcher_(this) {
 
-  connect(&watcher_, SIGNAL(directoryChanged(const QString&)), SIGNAL(PathChanged(const QString&)));
+  connect(&watcher_, SIGNAL(directoryChanged(QString)), SIGNAL(PathChanged(QString)));
 
 }