Auto merge of #15304 - servo:buildtimetrend, r=aneeshusa
Auto merge of #15304 - servo:buildtimetrend, r=aneeshusa

Remove 'buildtimetrend' Travis webhook.

The service is discontinued.

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