remove unnecessary changes to core
remove unnecessary changes to core

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