Improve build system

Remove obsolete files containing macros which were needed before the build system was moderinsed. The only macro which is still needed was added in the file CbmMacros.cmake.

requested review from @osingh

assigned to @p.-a.loizeau

Dear @f.uhlig, @v.friese, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

approved this merge request

added 9 commits

• 1e54825e...61cf78a6 - 8 commits from branch computing:master
• b43dbf4c - Improve build system

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added 2 commits

• aed85718 - 1 commit from branch computing:master
• 9c38dcb8 - Improve build system

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merged