Revert rgReferenceLevel change

ChangeLog

@@ -20,9 +20,6 @@
     drive.
 14. If a dynamic playlist has rating 0..5 stars, then include all songs (even
     those without an explicit rating).
-15. Add non-GUI rgReferenceLevel config item to set the reference level for
-    ReplayGain scanning. e.g. add 'rgReferenceLevel=-16.0" to the "General"
-    section.
 
 2.3.1
 -----

replaygain/main.cpp

@@ -26,7 +26,6 @@
 #include <QTimer>
 #include <stdio.h>
 #include "replaygain.h"
-#include "config.h"
 
 int main(int argc, char *argv[])
 {
@@ -40,9 +39,6 @@ int main(int argc, char *argv[])
         fileNames.append(QString::fromUtf8(argv[i+1]));
     }
 
-    QCoreApplication::setApplicationName(PACKAGE_NAME);
-    QCoreApplication::setOrganizationName(ORGANIZATION_NAME);
-
     QCoreApplication app(argc, argv);
     ReplayGain *rg=new ReplayGain(fileNames);
     QTimer::singleShot(0, rg, SLOT(scan()));

replaygain/trackscanner.cpp

@@ -29,7 +29,6 @@
 #ifdef FFMPEG_FOUND
 #include "ffmpeginput.h"
 #endif
-#include <QSettings>
 
 #define RG_REFERENCE_LEVEL -18.0
 
@@ -43,16 +42,6 @@ double TrackScanner::clamp(double v)
 
 double TrackScanner::reference(double v)
 {
-    static double rgReferenceLevel = 1.0;
-
-    if (rgReferenceLevel>0.0) {
-        QSettings s;
-        s.beginGroup("General");
-        rgReferenceLevel = s.contains("rgReferenceLevel") ? s.value("rgReferenceLevel").toDouble() : RG_REFERENCE_LEVEL;
-        if (rgReferenceLevel > 0.0 || rgReferenceLevel < -64.0) {
-            rgReferenceLevel = RG_REFERENCE_LEVEL;
-        }
-    }
     return clamp(RG_REFERENCE_LEVEL-v);
 }