Update usage of expect_error()

[hfrick]

• expect_error({expr}, NA) -> expect_no_condition()
• removing tests on an error being thrown from base-R by UseMethod(), e.g.,

>     grid_max_entropy(
+       size = 11,
+       original = FALSE
+     )
Error in UseMethod("grid_max_entropy") : 
  no applicable method for 'grid_max_entropy' applied to an object of class "c('double', 'numeric')"

[simonpcouch]

Nailed it!🎯