Fixes

* Read ConfigParams of O2Kine generator at Init stage

* Remove leftover printouts

* Read ConfigParams of O2Kine generator at Init stage (cnt.)

Author: preghenella

Generators/include/Generators/GeneratorFromFile.h

@@ -67,6 +67,8 @@ class GeneratorFromO2Kine : public o2::eventgen::Generator
   GeneratorFromO2Kine() = default;
   GeneratorFromO2Kine(const char* name);
 
+  bool Init() override;
+
   // the o2 Generator interface methods
   bool generateEvent() override
   { /* trivial - actual work in importParticles */