Merge pull request #997 from DhairyaLGandhi/dg/rmnonlinear

Remove `literal_adjoint(::NoTimeSolution)`

Author: ChrisRackauckas

ext/SciMLBaseZygoteExt.jl

@@ -235,16 +235,6 @@ end
     NonlinearSolution{T, N, uType, R, P, A, O, uType2}(u, args...), NonlinearSolutionAdjoint
 end
 
-@adjoint function literal_getproperty(sol::SciMLBase.AbstractNoTimeSolution,
-        ::Val{:u})
-    function solu_adjoint(Δ)
-        zerou = zero(sol.prob.u0)
-        _Δ = @. ifelse(Δ === nothing, zerou, Δ)
-        (build_solution(sol.prob, sol.alg, _Δ, sol.resid),)
-    end
-    sol.u, solu_adjoint
-end
-
 @adjoint function literal_getproperty(sol::SciMLBase.LinearSolution, ::Val{:u})
     function solu_adjoint(Δ)
         zerou = zero(sol.u)