Fix code quality: self assignments
Fix code quality: self assignments

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