Drop unneeded constraints on LH and Allure (#4475)
Drop unneeded constraints on LH and Allure (#4475)

The issue is reported to be fixed and haddock problems are worked around in the new cabal files (as are the original issue problems, in fact).
stackbuilders/stackage,mstksg/stackage,wereHamster/stackage,fpco/stackage,iand675/stackage,massysett/stackage,athanclark/stackage,michalkonecny/stackage,peti/stackage,spencerjanssen/stackage,jonschoning/stackage,asr/stackage,fimad/stackage,mrkkrp/stackage,int-index/stackage,soenkehahn/stackage,simonmichael/stackage,Daniel-Diaz/stackage,ethercrow/stackage,clinty/stackage