Clear off some debugging messages

src/audio/tone.cpp

@@ -115,7 +115,6 @@ void
 Tone::genSin(SFLDataFormat* buffer, int frequency1, int frequency2, int nb) 
 {
 
-  _debug("Tone::genSin :: called!!!!!!!!!!!!!!!!!! %i \n",nb);
   double pi2 = 6.28318520; 
   double var1 = pi2 * (double)frequency1 / (double)_sampleRate;
   double var2 = pi2 * (double)frequency2 / (double)_sampleRate;

src/audio/tonegenerator.cpp

@@ -45,8 +45,6 @@ ToneGenerator::~ToneGenerator (void) {
 void
 ToneGenerator::generateSin (int lowerfreq, int higherfreq, int16* ptr, int len) const {
   double var1, var2;
-			
-  _debug("when is this called"); 
  										
   var1 = (double)2 * (double)M_PI * (double)higherfreq / (double)_sampleRate; 
   var2 = (double)2 * (double)M_PI * (double)lowerfreq / (double)_sampleRate;