Simplify tests for pre

Author: ChrisRackauckas

test/forwarddiff_dual_detection.jl

@@ -1,6 +1,5 @@
 using DiffEqBase, ForwardDiff, Test, InteractiveUtils
 using ReverseDiff, SciMLStructures
-using Plots
 
 u0 = 2.0
 p = 2.0
@@ -36,7 +35,7 @@ p_possibilities = [ForwardDiff.Dual(2.0), (ForwardDiff.Dual(2.0), 2.0),
     (; x = 2.0, y = [ForwardDiff.Dual(2.0)]), (; x = 2.0, y = [[ForwardDiff.Dual(2.0)]]),
     Set([2.0, ForwardDiff.Dual(2.0)]), (SciMLBase.NullParameters(), ForwardDiff.Dual(2.0)),
     ((), ForwardDiff.Dual(2.0)), ForwardDiff.Dual{Nothing}(ForwardDiff.Dual{MyStruct}(2.0)),
-    (plot(), ForwardDiff.Dual(2.0)), [(1.0, ForwardDiff.Dual(1.0, (1.0,)))]
+    (ForwardDiff.Dual(2.0)), [(1.0, ForwardDiff.Dual(1.0, (1.0,)))]
 ]
 
 for p in p_possibilities