Revert "UnXFAIL Wester test_I2 with nsimplify"
Revert "UnXFAIL Wester test_I2 with nsimplify"

This reverts commit 61f065ad9ca06f567777a054bf7bce64d6dd2938.

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