ULPError: delete dead code

Author: nsajko

test/testhelpers/ULPError.jl

@@ -10,12 +10,10 @@ module ULPError
         zero_return = Float32(0)
         inf_return = Float32(Inf)
         # handle floating-point edge cases
-        accur_is_zero = iszero(accurate)
         accur_is_nan = isnan(accurate)
         accur_is_inf = isinf(accurate)
         approx_is_inf = isinf(approximate)
         approx_is_nan = isnan(approximate)
-        approx_is_zero = iszero(approximate)
         if accur_is_nan || approx_is_nan
             return if accur_is_nan === approx_is_nan
                 zero_return