Auto merge of #15284 - aneeshusa:remove-unused-windows-builders, r=larsbergstrom
Auto merge of #15284 - aneeshusa:remove-unused-windows-builders, r=larsbergstrom

Remove unused builders

These have been superseded by the windows-gnu and windows-msvc versions.
Removing them allows freeing up disk space on the Windows builders.

r? @larsbergstrom

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