stylo: Remove useless assertions.
stylo: Remove useless assertions.

ElementStyles::primary expect()s.

jimberlage/servo,cbrewster/servo,avadacatavra/servo,ConnorGBrewster/servo,upsuper/servo,emilio/servo,mbrubeck/servo,saneyuki/servo,ConnorGBrewster/servo,jimberlage/servo,dati91/servo,canaltinova/servo,jimberlage/servo,mbrubeck/servo,peterjoel/servo,emilio/servo,fiji-flo/servo,fiji-flo/servo,DominoTree/servo,splav/servo,DominoTree/servo,sadmansk/servo,notriddle/servo,dati91/servo,dati91/servo,rnestler/servo,paulrouget/servo,szeged/servo,paulrouget/servo,larsbergstrom/servo,peterjoel/servo,rnestler/servo,larsbergstrom/servo,larsbergstrom/servo,mattnenterprise/servo,nnethercote/servo,splav/servo,DominoTree/servo,szeged/servo,larsbergstrom/servo,larsbergstrom/servo,larsbergstrom/servo,jimberlage/servo,sadmansk/servo,KiChjang/servo,anthgur/servo,SimonSapin/servo,notriddle/servo,ConnorGBrewster/servo,DominoTree/servo,cbrewster/servo,anthgur/servo,szeged/servo,notriddle/servo,mattnenterprise/servo,dsandeephegde/servo,dati91/servo,szeged/servo,szeged/servo,peterjoel/servo,larsbergstrom/servo,upsuper/servo,splav/servo,nnethercote/servo,peterjoel/servo,paulrouget/servo,thiagopnts/servo,sadmansk/servo,notriddle/servo,paulrouget/servo,avadacatavra/servo,mattnenterprise/servo,szeged/servo,emilio/servo,SimonSapin/servo,rnestler/servo,pyfisch/servo,notriddle/servo,sadmansk/servo,nnethercote/servo,jimberlage/servo,notriddle/servo,canaltinova/servo,CJ8664/servo,upsuper/servo,pyfisch/servo,paulrouget/servo,anthgur/servo,nnethercote/servo,SimonSapin/servo,mattnenterprise/servo,DominoTree/servo,paulrouget/servo,thiagopnts/servo,SimonSapin/servo,eddyb/servo,mattnenterprise/servo,mbrubeck/servo,szeged/servo,splav/servo,paulrouget/servo,SimonSapin/servo,dati91/servo,dsandeephegde/servo,sadmansk/servo,DominoTree/servo,avadacatavra/servo,mbrubeck/servo,avadacatavra/servo,ConnorGBrewster/servo,cbrewster/servo,canaltinova/servo,mattnenterprise/servo,rnestler/servo,sadmansk/servo,sadmansk/servo,KiChjang/servo,nnethercote/servo,emilio/servo,pyfisch/servo,avadacatavra/servo,dsandeephegde/servo,KiChjang/servo,nnethercote/servo,thiagopnts/servo,larsbergstrom/servo,nnethercote/servo,peterjoel/servo,CJ8664/servo,SimonSapin/servo,dati91/servo,KiChjang/servo,ConnorGBrewster/servo,rnestler/servo,dsandeephegde/servo,paulrouget/servo,sadmansk/servo,saneyuki/servo,pyfisch/servo,KiChjang/servo,canaltinova/servo,dati91/servo,mattnenterprise/servo,notriddle/servo,SimonSapin/servo,szeged/servo,rnestler/servo,cbrewster/servo,pyfisch/servo,fiji-flo/servo,dsandeephegde/servo,szeged/servo,pyfisch/servo,CJ8664/servo,KiChjang/servo,dsandeephegde/servo,jimberlage/servo,paulrouget/servo,saneyuki/servo,KiChjang/servo,ConnorGBrewster/servo,eddyb/servo,thiagopnts/servo,DominoTree/servo,jimberlage/servo,peterjoel/servo,jimberlage/servo,notriddle/servo,CJ8664/servo,larsbergstrom/servo,peterjoel/servo,peterjoel/servo,splav/servo,notriddle/servo,peterjoel/servo,upsuper/servo,splav/servo,paulrouget/servo,upsuper/servo,ConnorGBrewster/servo,KiChjang/servo,DominoTree/servo,emilio/servo,KiChjang/servo,emilio/servo,eddyb/servo,thiagopnts/servo,mbrubeck/servo,avadacatavra/servo,saneyuki/servo,eddyb/servo,CJ8664/servo,DominoTree/servo,fiji-flo/servo,thiagopnts/servo,splav/servo,thiagopnts/servo,SimonSapin/servo,emilio/servo,pyfisch/servo,larsbergstrom/servo,upsuper/servo,canaltinova/servo,ConnorGBrewster/servo,dsandeephegde/servo,rnestler/servo,anthgur/servo,cbrewster/servo,mbrubeck/servo,mbrubeck/servo,saneyuki/servo,upsuper/servo,peterjoel/servo,cbrewster/servo,fiji-flo/servo,splav/servo,dati91/servo,saneyuki/servo,rnestler/servo,mattnenterprise/servo,KiChjang/servo,pyfisch/servo,saneyuki/servo,emilio/servo,thiagopnts/servo,CJ8664/servo,splav/servo,upsuper/servo,eddyb/servo,anthgur/servo,CJ8664/servo,canaltinova/servo,anthgur/servo,emilio/servo,anthgur/servo,fiji-flo/servo,CJ8664/servo,szeged/servo,fiji-flo/servo,eddyb/servo,nnethercote/servo,saneyuki/servo,fiji-flo/servo,dsandeephegde/servo,splav/servo,DominoTree/servo,notriddle/servo,pyfisch/servo,nnethercote/servo,saneyuki/servo,mbrubeck/servo,canaltinova/servo,emilio/servo,anthgur/servo,canaltinova/servo,eddyb/servo,avadacatavra/servo,cbrewster/servo,cbrewster/servo,pyfisch/servo,avadacatavra/servo,saneyuki/servo,jimberlage/servo,nnethercote/servo,eddyb/servo