TST: reduce Appveyor CI load
TST: reduce Appveyor CI load

* Azure Windows CI runs have been
successfully substituting for Appveyor
Windows CI runs for some time now

* since Azure currently offers more free
parallel jobs and Appveyor sometimes holds
up our development agility with slower CI,
we are reducing to a single full test suite
run on Appveyor

tylerjereddy/scipy,aeklant/scipy,lhilt/scipy,nmayorov/scipy,Eric89GXL/scipy,scipy/scipy,zerothi/scipy,jamestwebber/scipy,anntzer/scipy,andyfaff/scipy,lhilt/scipy,ilayn/scipy,perimosocordiae/scipy,grlee77/scipy,lhilt/scipy,arokem/scipy,jor-/scipy,pizzathief/scipy,jamestwebber/scipy,andyfaff/scipy,perimosocordiae/scipy,arokem/scipy,mdhaber/scipy,endolith/scipy,pizzathief/scipy,endolith/scipy,aeklant/scipy,scipy/scipy,matthew-brett/scipy,jor-/scipy,ilayn/scipy,matthew-brett/scipy,gertingold/scipy,rgommers/scipy,ilayn/scipy,nmayorov/scipy,mdhaber/scipy,pizzathief/scipy,gertingold/scipy,matthew-brett/scipy,arokem/scipy,gertingold/scipy,scipy/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,mdhaber/scipy,mdhaber/scipy,nmayorov/scipy,jor-/scipy,tylerjereddy/scipy,scipy/scipy,rgommers/scipy,anntzer/scipy,Eric89GXL/scipy,aeklant/scipy,jamestwebber/scipy,perimosocordiae/scipy,nmayorov/scipy,andyfaff/scipy,e-q/scipy,pizzathief/scipy,endolith/scipy,vigna/scipy,perimosocordiae/scipy,tylerjereddy/scipy,grlee77/scipy,tylerjereddy/scipy,ilayn/scipy,grlee77/scipy,andyfaff/scipy,aeklant/scipy,ilayn/scipy,grlee77/scipy,person142/scipy,aeklant/scipy,rgommers/scipy,WarrenWeckesser/scipy,Eric89GXL/scipy,zerothi/scipy,anntzer/scipy,rgommers/scipy,Eric89GXL/scipy,Eric89GXL/scipy,person142/scipy,jamestwebber/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,mdhaber/scipy,anntzer/scipy,aarchiba/scipy,lhilt/scipy,jor-/scipy,gertingold/scipy,Stefan-Endres/scipy,arokem/scipy,e-q/scipy,endolith/scipy,jor-/scipy,jamestwebber/scipy,grlee77/scipy,person142/scipy,anntzer/scipy,WarrenWeckesser/scipy,endolith/scipy,pizzathief/scipy,endolith/scipy,andyfaff/scipy,perimosocordiae/scipy,person142/scipy,aarchiba/scipy,scipy/scipy,scipy/scipy,Stefan-Endres/scipy,e-q/scipy,matthew-brett/scipy,lhilt/scipy,vigna/scipy,tylerjereddy/scipy,aarchiba/scipy,rgommers/scipy,gertingold/scipy,ilayn/scipy,person142/scipy,aarchiba/scipy,Eric89GXL/scipy,zerothi/scipy,vigna/scipy,anntzer/scipy,zerothi/scipy,vigna/scipy,aarchiba/scipy,Stefan-Endres/scipy,Stefan-Endres/scipy,vigna/scipy,mdhaber/scipy,nmayorov/scipy,e-q/scipy,zerothi/scipy,zerothi/scipy,Stefan-Endres/scipy,matthew-brett/scipy,arokem/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,andyfaff/scipy,e-q/scipy