mechanics: corrected deprecation warning
mechanics: corrected deprecation warning

Changed to deprecated since 1.1 and remove last supported
version.

souravsingh/sympy,yashsharan/sympy,kaushik94/sympy,aktech/sympy,kaushik94/sympy,ChristinaZografou/sympy,drufat/sympy,madan96/sympy,chaffra/sympy,rahuldan/sympy,skidzo/sympy,Titan-C/sympy,jaimahajan1997/sympy,rahuldan/sympy,sampadsaha5/sympy,jaimahajan1997/sympy,hargup/sympy,skidzo/sympy,hargup/sympy,yashsharan/sympy,souravsingh/sympy,ChristinaZografou/sympy,rahuldan/sympy,jaimahajan1997/sympy,madan96/sympy,kaushik94/sympy,aktech/sympy,chaffra/sympy,Titan-C/sympy,sampadsaha5/sympy,ChristinaZografou/sympy,drufat/sympy,postvakje/sympy,postvakje/sympy,skidzo/sympy,chaffra/sympy,yashsharan/sympy,souravsingh/sympy,hargup/sympy,aktech/sympy,postvakje/sympy,madan96/sympy,Titan-C/sympy,sampadsaha5/sympy,drufat/sympy