Remove some convenience methods on Event
Remove some convenience methods on Event

They don't need to exist anymore now that dom::eventdispatcher has been removed.

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