removed deprecated methods from sets
removed deprecated methods from sets

kaushik94/sympy,jerli/sympy,mafiya69/sympy,Curious72/sympy,sampadsaha5/sympy,souravsingh/sympy,rahuldan/sympy,mafiya69/sympy,ChristinaZografou/sympy,yashsharan/sympy,Titan-C/sympy,rahuldan/sympy,mafiya69/sympy,jaimahajan1997/sympy,lindsayad/sympy,jerli/sympy,skidzo/sympy,Arafatk/sympy,hargup/sympy,chaffra/sympy,kaushik94/sympy,ChristinaZografou/sympy,jaimahajan1997/sympy,kaichogami/sympy,Titan-C/sympy,drufat/sympy,hargup/sympy,postvakje/sympy,Titan-C/sympy,lindsayad/sympy,drufat/sympy,kaichogami/sympy,chaffra/sympy,sampadsaha5/sympy,aktech/sympy,jaimahajan1997/sympy,kaushik94/sympy,chaffra/sympy,madan96/sympy,yashsharan/sympy,yashsharan/sympy,skidzo/sympy,Curious72/sympy,madan96/sympy,madan96/sympy,souravsingh/sympy,hargup/sympy,souravsingh/sympy,postvakje/sympy,ChristinaZografou/sympy,postvakje/sympy,Curious72/sympy,Arafatk/sympy,Arafatk/sympy,aktech/sympy,rahuldan/sympy,jerli/sympy,drufat/sympy,sampadsaha5/sympy,kaichogami/sympy,skidzo/sympy,lindsayad/sympy,aktech/sympy