#10987 Remove the lru_cache from shgo triangulation
#10987 Remove the lru_cache from shgo triangulation

Simply removing the cache and keeping the cached functions
was slightly slower during tests.

Inlining generate_sub_cell_t1 and generate_sub_cell_t2
at their single point of use gave back the lost performance.

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