Revert "UnXFAIL Wester test_I1 with nsimplify"
Revert "UnXFAIL Wester test_I1 with nsimplify"

This reverts commit 3f29ef613e354bdeea87bd18a5e6f1bfe70d79b4.

liangjiaxing/sympy,abloomston/sympy,kumarkrishna/sympy,Arafatk/sympy,cccfran/sympy,lindsayad/sympy,oliverlee/sympy,cccfran/sympy,AunShiLord/sympy,Gadal/sympy,meghana1995/sympy,VaibhavAgarwalVA/sympy,pandeyadarsh/sympy,cswiercz/sympy,postvakje/sympy,abloomston/sympy,wyom/sympy,ahhda/sympy,jerli/sympy,abhiii5459/sympy,shipci/sympy,aktech/sympy,debugger22/sympy,pbrady/sympy,moble/sympy,vipulroxx/sympy,kaichogami/sympy,MridulS/sympy,wanglongqi/sympy,kaushik94/sympy,emon10005/sympy,Sumith1896/sympy,Gadal/sympy,jbbskinny/sympy,kaichogami/sympy,maniteja123/sympy,Vishluck/sympy,jaimahajan1997/sympy,toolforger/sympy,sahmed95/sympy,kmacinnis/sympy,drufat/sympy,diofant/diofant,sampadsaha5/sympy,Mitchkoens/sympy,aktech/sympy,madan96/sympy,asm666/sympy,hargup/sympy,garvitr/sympy,MechCoder/sympy,Mitchkoens/sympy,dqnykamp/sympy,jerli/sympy,kevalds51/sympy,saurabhjn76/sympy,atreyv/sympy,mcdaniel67/sympy,farhaanbukhsh/sympy,jamesblunt/sympy,jbbskinny/sympy,drufat/sympy,grevutiu-gabriel/sympy,shipci/sympy,bukzor/sympy,Curious72/sympy,meghana1995/sympy,rahuldan/sympy,abhiii5459/sympy,madan96/sympy,atreyv/sympy,MechCoder/sympy,madan96/sympy,Vishluck/sympy,hrashk/sympy,Shaswat27/sympy,dqnykamp/sympy,vipulroxx/sympy,dqnykamp/sympy,atsao72/sympy,Titan-C/sympy,kevalds51/sympy,wanglongqi/sympy,asm666/sympy,hrashk/sympy,liangjiaxing/sympy,AkademieOlympia/sympy,skidzo/sympy,Davidjohnwilson/sympy,toolforger/sympy,debugger22/sympy,AkademieOlympia/sympy,hrashk/sympy,sahmed95/sympy,maniteja123/sympy,pandeyadarsh/sympy,saurabhjn76/sympy,rahuldan/sympy,yukoba/sympy,garvitr/sympy,Shaswat27/sympy,iamutkarshtiwari/sympy,ChristinaZografou/sympy,atsao72/sympy,ahhda/sympy,sampadsaha5/sympy,abloomston/sympy,emon10005/sympy,souravsingh/sympy,kumarkrishna/sympy,sahmed95/sympy,jaimahajan1997/sympy,vipulroxx/sympy,chaffra/sympy,Designist/sympy,mcdaniel67/sympy,sunny94/temp,jerli/sympy,lidavidm/sympy,Arafatk/sympy,sunny94/temp,moble/sympy,ga7g08/sympy,toolforger/sympy,kumarkrishna/sympy,sahilshekhawat/sympy,shikil/sympy,MridulS/sympy,grevutiu-gabriel/sympy,asm666/sympy,lidavidm/sympy,beni55/sympy,Davidjohnwilson/sympy,rahuldan/sympy,chaffra/sympy,souravsingh/sympy,pbrady/sympy,ga7g08/sympy,cswiercz/sympy,jbbskinny/sympy,grevutiu-gabriel/sympy,sunny94/temp,Arafatk/sympy,drufat/sympy,aktech/sympy,jamesblunt/sympy,pbrady/sympy,meghana1995/sympy,emon10005/sympy,debugger22/sympy,mafiya69/sympy,lindsayad/sympy,beni55/sympy,wyom/sympy,kevalds51/sympy,Gadal/sympy,Sumith1896/sympy,shipci/sympy,kmacinnis/sympy,MridulS/sympy,lidavidm/sympy,AunShiLord/sympy,liangjiaxing/sympy,Titan-C/sympy,abhiii5459/sympy,bukzor/sympy,sahilshekhawat/sympy,cccfran/sympy,ahhda/sympy,garvitr/sympy,mafiya69/sympy,mcdaniel67/sympy,yukoba/sympy,Curious72/sympy,chaffra/sympy,souravsingh/sympy,kaushik94/sympy,yashsharan/sympy,VaibhavAgarwalVA/sympy,ga7g08/sympy,sampadsaha5/sympy,AunShiLord/sympy,atsao72/sympy,kaushik94/sympy,Sumith1896/sympy,Davidjohnwilson/sympy,ChristinaZografou/sympy,Mitchkoens/sympy,AkademieOlympia/sympy,Vishluck/sympy,sahilshekhawat/sympy,shikil/sympy,atreyv/sympy,Designist/sympy,farhaanbukhsh/sympy,mafiya69/sympy,oliverlee/sympy,saurabhjn76/sympy,skirpichev/omg,skidzo/sympy,farhaanbukhsh/sympy,kaichogami/sympy,lindsayad/sympy,postvakje/sympy,hargup/sympy,MechCoder/sympy,cswiercz/sympy,Titan-C/sympy,beni55/sympy,kmacinnis/sympy,Shaswat27/sympy,skidzo/sympy,jaimahajan1997/sympy,jamesblunt/sympy,yashsharan/sympy,moble/sympy,ChristinaZografou/sympy,iamutkarshtiwari/sympy,Curious72/sympy,pandeyadarsh/sympy,oliverlee/sympy,yashsharan/sympy,yukoba/sympy,shikil/sympy,wyom/sympy,hargup/sympy,iamutkarshtiwari/sympy,wanglongqi/sympy,Designist/sympy,postvakje/sympy,bukzor/sympy,maniteja123/sympy,VaibhavAgarwalVA/sympy