remove redundant mooncake rules

Author: jClugstor

ext/DiffEqBaseMooncakeExt.jl

@@ -29,18 +29,4 @@ import Mooncake: rrule!!, CoDual, zero_fcodual, @is_primitive,
     },
     true,)
 
-@zero_adjoint MinimalCtx Tuple{typeof(DiffEqBase.numargs), Any}
-@is_primitive MinimalCtx Tuple{
-    typeof(DiffEqBase.set_mooncakeoriginator_if_mooncake), SciMLBase.ChainRulesOriginator
-}
-
-@mooncake_overlay DiffEqBase.set_mooncakeoriginator_if_mooncake(x::SciMLBase.ADOriginator) = SciMLBase.MooncakeOriginator()
-
-function rrule!!(
-        f::CoDual{typeof(DiffEqBase.set_mooncakeoriginator_if_mooncake)},
-        X::CoDual{SciMLBase.ChainRulesOriginator}
-)
-    return zero_fcodual(SciMLBase.MooncakeOriginator()), NoPullback(f, X)
-end
-
 end