refactor: remove alg from the cache

Author: avik-pal

src/internal/jacobian.jl

@@ -34,7 +34,6 @@ Construct a cache for the Jacobian of `f` w.r.t. `u`.
     fu
     u
     p
-    alg
     stats::NLStats
     autodiff
     di_extras
@@ -106,18 +105,18 @@ function JacobianCache(prob, alg, f::F, fu_, u, p; stats, autodiff = nothing,
     end
 
     return JacobianCache{iip}(
-        J, f, fu, u, p, alg, stats, autodiff, di_extras, sdifft_extras)
+        J, f, fu, u, p, stats, autodiff, di_extras, sdifft_extras)
 end
 
 function JacobianCache(prob, alg, f::F, ::Number, u::Number, p; stats,
         autodiff = nothing, kwargs...) where {F}
     fu = f(u, p)
     if SciMLBase.has_jac(f) || SciMLBase.has_vjp(f) || SciMLBase.has_jvp(f)
-        return JacobianCache{false}(u, f, fu, u, p, alg, stats, autodiff, nothing)
+        return JacobianCache{false}(u, f, fu, u, p, stats, autodiff, nothing)
     end
     autodiff = get_concrete_forward_ad(autodiff, prob; check_forward_mode = false)
     di_extras = DI.prepare_derivative(f, autodiff, u, Constant(prob.p))
-    return JacobianCache{false}(u, f, fu, u, p, alg, stats, autodiff, di_extras, nothing)
+    return JacobianCache{false}(u, f, fu, u, p, stats, autodiff, di_extras, nothing)
 end
 
 (cache::JacobianCache)(u = cache.u) = cache(cache.J, u, cache.p)