Revert "Fix Julia 1.10 (LTS) compatibility for calc_rosenbrock_differentiation"

This reverts commit 471483e.

Author: ChrisRackauckas

lib/OrdinaryDiffEqRosenbrock/src/OrdinaryDiffEqRosenbrock.jl

@@ -32,24 +32,9 @@ using OrdinaryDiffEqDifferentiation: TimeDerivativeWrapper, TimeGradientWrapper,
     wrapprecs, calc_tderivative, build_grad_config,
     build_jac_config, issuccess_W, jacobian2W!,
     resize_jac_config!, resize_grad_config!,
-    calc_W, calc_rosenbrock_differentiation!, build_J_W,
+    calc_W, calc_rosenbrock_differentiation!, calc_rosenbrock_differentiation, build_J_W,
     UJacobianWrapper, dolinsolve, WOperator, resize_J_W!
 
-# Import the non-mutating calc_rosenbrock_differentiation if available (requires
-# local-path OrdinaryDiffEqDifferentiation via [sources], supported on Julia 1.11+).
-# On Julia 1.10 where [sources] is not supported, the registered version of
-# OrdinaryDiffEqDifferentiation is used and won't have this function, so we
-# provide a simple fallback that delegates to calc_tderivative + calc_W.
-if isdefined(OrdinaryDiffEqDifferentiation, :calc_rosenbrock_differentiation)
-    using OrdinaryDiffEqDifferentiation: calc_rosenbrock_differentiation
-else
-    function calc_rosenbrock_differentiation(integrator, cache, dtgamma, repeat_step)
-        dT = calc_tderivative(integrator, cache)
-        W = calc_W(integrator, cache, dtgamma, repeat_step)
-        return dT, W
-    end
-end
-
 using Reexport
 @reexport using SciMLBase