minor changes in R3BMusliMap2Cal to try to get read of the define

[audreychatillon]

debug

on-going to get rid of the define hard code

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Mention any issue this PR is resolved or is related to.

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Checklist:

• [ ] Rebased against dev branch
• [ ] My name is in the resp. CONTRIBUTORS/AUTHORS file
• [ ] Followed the pull request guidlines and the Git workflow
• [ ] Followed the seven rules of great commit messages