Remove PropertyManager
Remove PropertyManager

* Merge its code with ManagedProperties

Davidjohnwilson/sympy,hrashk/sympy,kmacinnis/sympy,maniteja123/sympy,AunShiLord/sympy,liangjiaxing/sympy,sahmed95/sympy,Davidjohnwilson/sympy,AkademieOlympia/sympy,mcdaniel67/sympy,Vishluck/sympy,mcdaniel67/sympy,VaibhavAgarwalVA/sympy,Shaswat27/sympy,hrashk/sympy,debugger22/sympy,skidzo/sympy,souravsingh/sympy,emon10005/sympy,sahmed95/sympy,cswiercz/sympy,kaushik94/sympy,Shaswat27/sympy,farhaanbukhsh/sympy,sunny94/temp,vipulroxx/sympy,dqnykamp/sympy,yukoba/sympy,mafiya69/sympy,hargup/sympy,jamesblunt/sympy,jerli/sympy,emon10005/sympy,AkademieOlympia/sympy,wyom/sympy,aktech/sympy,skidzo/sympy,sahmed95/sympy,cccfran/sympy,amitjamadagni/sympy,AkademieOlympia/sympy,kevalds51/sympy,meghana1995/sympy,maniteja123/sympy,abhiii5459/sympy,beni55/sympy,jbbskinny/sympy,drufat/sympy,sampadsaha5/sympy,liangjiaxing/sympy,kumarkrishna/sympy,oliverlee/sympy,shipci/sympy,skirpichev/omg,yashsharan/sympy,ga7g08/sympy,moble/sympy,debugger22/sympy,shikil/sympy,madan96/sympy,Designist/sympy,atsao72/sympy,sahilshekhawat/sympy,asm666/sympy,emon10005/sympy,jaimahajan1997/sympy,oliverlee/sympy,lidavidm/sympy,Gadal/sympy,sampadsaha5/sympy,rahuldan/sympy,AunShiLord/sympy,moble/sympy,jaimahajan1997/sympy,Davidjohnwilson/sympy,ChristinaZografou/sympy,vipulroxx/sympy,toolforger/sympy,Designist/sympy,iamutkarshtiwari/sympy,yashsharan/sympy,shipci/sympy,meghana1995/sympy,kaichogami/sympy,sahilshekhawat/sympy,meghana1995/sympy,wanglongqi/sympy,kaushik94/sympy,dqnykamp/sympy,MridulS/sympy,beni55/sympy,moble/sympy,souravsingh/sympy,ga7g08/sympy,jerli/sympy,Vishluck/sympy,rahuldan/sympy,kaichogami/sympy,Mitchkoens/sympy,wyom/sympy,saurabhjn76/sympy,mafiya69/sympy,Titan-C/sympy,lindsayad/sympy,sunny94/temp,cswiercz/sympy,Sumith1896/sympy,atreyv/sympy,MridulS/sympy,kumarkrishna/sympy,Designist/sympy,postvakje/sympy,Arafatk/sympy,postvakje/sympy,sunny94/temp,garvitr/sympy,shipci/sympy,cccfran/sympy,Gadal/sympy,jaimahajan1997/sympy,grevutiu-gabriel/sympy,grevutiu-gabriel/sympy,saurabhjn76/sympy,skidzo/sympy,cswiercz/sympy,Mitchkoens/sympy,saurabhjn76/sympy,chaffra/sympy,Arafatk/sympy,pbrady/sympy,asm666/sympy,abloomston/sympy,iamutkarshtiwari/sympy,jerli/sympy,atreyv/sympy,aktech/sympy,ahhda/sympy,ChristinaZografou/sympy,ChristinaZografou/sympy,diofant/diofant,ahhda/sympy,hrashk/sympy,Titan-C/sympy,chaffra/sympy,jamesblunt/sympy,madan96/sympy,wanglongqi/sympy,bukzor/sympy,debugger22/sympy,Sumith1896/sympy,dqnykamp/sympy,toolforger/sympy,kmacinnis/sympy,VaibhavAgarwalVA/sympy,kaichogami/sympy,Shaswat27/sympy,Mitchkoens/sympy,Sumith1896/sympy,MechCoder/sympy,postvakje/sympy,kaushik94/sympy,chaffra/sympy,kevalds51/sympy,beni55/sympy,yukoba/sympy,Curious72/sympy,abhiii5459/sympy,MridulS/sympy,pandeyadarsh/sympy,Curious72/sympy,farhaanbukhsh/sympy,drufat/sympy,souravsingh/sympy,amitjamadagni/sympy,aktech/sympy,wanglongqi/sympy,farhaanbukhsh/sympy,atsao72/sympy,abloomston/sympy,jbbskinny/sympy,oliverlee/sympy,pandeyadarsh/sympy,Arafatk/sympy,Gadal/sympy,ga7g08/sympy,yashsharan/sympy,sampadsaha5/sympy,hargup/sympy,lidavidm/sympy,lidavidm/sympy,hargup/sympy,mafiya69/sympy,vipulroxx/sympy,iamutkarshtiwari/sympy,ahhda/sympy,rahuldan/sympy,Curious72/sympy,drufat/sympy,pbrady/sympy,jamesblunt/sympy,garvitr/sympy,lindsayad/sympy,atsao72/sympy,flacjacket/sympy,VaibhavAgarwalVA/sympy,jbbskinny/sympy,bukzor/sympy,madan96/sympy,MechCoder/sympy,AunShiLord/sympy,mcdaniel67/sympy,shikil/sympy,asm666/sympy,kumarkrishna/sympy,atreyv/sympy,liangjiaxing/sympy,garvitr/sympy,Vishluck/sympy,cccfran/sympy,pandeyadarsh/sympy,sahilshekhawat/sympy,srjoglekar246/sympy,kmacinnis/sympy,wyom/sympy,MechCoder/sympy,Titan-C/sympy,bukzor/sympy,abhiii5459/sympy,shikil/sympy,abloomston/sympy,yukoba/sympy,lindsayad/sympy,toolforger/sympy,grevutiu-gabriel/sympy,maniteja123/sympy,pbrady/sympy,kevalds51/sympy