Remove the unused PipelineExitType arguments from ScriptTask::handle_exit_pipeline_msg and shut_down_layout.
Remove the unused PipelineExitType arguments from ScriptTask::handle_exit_pipeline_msg and shut_down_layout.

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