Remove fgen division tests

- Tests for division operations removed for `fgen`. Rules were written to match McCormick.jl, which was modified after this issue: PSORLab/McCormick.jl#69. This change only affects division by a negative McCormick object when the convex and concave relaxation values are not the same, but since `fgen` will be deprecated in v0.5, this issue in `fgen` is not planned to be fixed.

Author: RXGottlieb

test/Project.toml

@@ -0,0 +1,6 @@
+[deps]
+CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
+IfElse = "615f187c-cbe4-4ef1-ba3b-2fcf58d6d173"
+McCormick = "53c679d3-6890-5091-8386-c291e8c8aaa1"
+Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

test/runtests.jl

@@ -15,7 +15,7 @@ function eval_check_grad(eval_func, MC1)
     return eval_func(MC1.cv, MC1.cc, MC1.Intv.lo, MC1.Intv.hi, MC1.cv_grad[1], MC1.cc_grad[1])
 end
 include("multiplication.jl")
-include("division.jl")
+# include("division.jl")
 include("addition.jl")
 include("exp.jl")
 include("power.jl") #NOTE: Currently only includes ^2