[Bridges] remove duplicated test

[odow]

Exact test is also here:

MathOptInterface.jl/test/Bridges/Constraint/functionize.jl

Lines 345 to 352 in 3a7f891

	function test_canonical_constraint_function()
	inner = MOI.Utilities.UniversalFallback(MOI.Utilities.Model{Float64}())
	model = MOI.Bridges.Constraint.ScalarFunctionize{Float64}(inner)
	x = MOI.add_variable(model)
	ci = MOI.add_constraint(model, x, MOI.GreaterThan(0.0))
	@test MOI.get(model, MOI.CanonicalConstraintFunction(), ci) ≈ x
	return
	end