fix KyrlovJL remake

[oscardssmith]

we had this args field that was never being used, but did break remake.

# before:
julia> remake(KrylovJL_GMRES(), precs=nothing).kwargs
pairs(::NamedTuple) with 1 entry:
  :args => ()
# after:
julia> remake(KrylovJL_GMRES(), precs=nothing).kwargs
Base.Pairs{Symbol, Union{}, Tuple{}, @NamedTuple{}}()

As a side-note, we should fix the default SciMLBase remake for structs with fields named both args and kwargs

[oscardssmith]

I think the proper fix here is actually SciML/SciMLBase.jl#769 (although it does appear that this functionality may not quite be working as intended)