(HybridMarkerTracking): fix tracking issues with strong distortion

What does this MR do?

Removing re-definition of member variable and undistort displayed image allows to correctly re-project tracking position on videos with strong distortions.

How to test it?

• Build and launch ExHybridMarkerTracker
• Load the given calibration file an play the given test video containing a fish eye effect
• See that the re-projected axis is well superimpose on the hybrid marker tracker

Data

• Calibration and video: https://owncloud.ircad.fr/index.php/s/7HopGQYqfXELFJl

Additional tests to run

• Build on Windows
• Build on Linux

Associated Issues/Merge Requests

• Merge requests
  • depends on conan/conan-hybrid_marker_tracker!11