do not add `order` arg to checkpdesol; remove use of it [skip ci]
do not add `order` arg to checkpdesol; remove use of it [skip ci]

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