Removed the deprecated fileTicket

src/sfizz/Synth.cpp

@@ -140,7 +140,6 @@ void sfz::Synth::clear()
     resources.clear();
     numGroups = 0;
     numMasters = 0;
-    fileTicket = -1;
     defaultSwitch = absl::nullopt;
     defaultPath = "";
     ccNames.clear();

src/sfizz/Synth.h

@@ -522,7 +522,6 @@ private:
 
     // Distribution used to generate random value for the *rand opcodes
     std::uniform_real_distribution<float> randNoteDistribution { 0, 1 };
-    unsigned fileTicket { 1 };
 
     std::mutex callbackGuard;
     bool freeWheeling { false };