Clean CMakeLists from not used unit tests compilation
Clean CMakeLists from not used unit tests compilation

Now lines corrsponding to compilation of unit tests
in VelocityCalibration are deleted for CMakeLists.

JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples,JPETTomography/j-pet-framework-examples