Remove licenses

In the discussion here !21 (merged) we decided to remove the licenses from subprojects and only keep the workspace license. Somewhere along the line some of the subproject licenses were re-added. This just removes them again.

assigned to @onyinyang

added 38 commits

• a42f3b5a...9257c848 - 37 commits from branch tpo/anti-censorship:main
• c53c8a8d - Remove licenses for subprojects that were erroneously re-added

Compare with previous version

enabled an automatic merge when all merge checks for c53c8a8d pass

requested review from @onyinyang

merged