Revert "Add expected haddock failure for socket."
Revert "Add expected haddock failure for socket."

This reverts commit c871752f596cff5085b99c8a7a58fdb5bcfd4ce8.

Please see lpeterse/haskell-socket/issues/47#issuecomment-282595718.

mrkkrp/stackage,jonschoning/stackage,athanclark/stackage,creichert/stackage,ethercrow/stackage,spencerjanssen/stackage,fimad/stackage,k0ral/stackage,Daniel-Diaz/stackage,garetxe/stackage,peti/stackage,iand675/stackage,judah/stackage,michalkonecny/stackage,mgajda/stackage,clinty/stackage,fpco/stackage,wereHamster/stackage,ygale/stackage,Shimuuar/stackage,soenkehahn/stackage,asr/stackage,massysett/stackage,alanz/stackage,GregorySchwartz/stackage,int-index/stackage,stackbuilders/stackage,lwm/stackage,simonmichael/stackage,phaazon/stackage,mstksg/stackage