removed unnecessary invalid input tests

Author: Pretty Taruvinga

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js

@@ -42,6 +42,3 @@ test(`should return "Invalid angle" when angle is 0`, () => {
 test(`should return "Invalid angle" when angle is 360 or greater`, () => {
   expect(getAngleType(360)).toEqual("Invalid angle");
 });
-test(`should return "Invalid angle" when angle is not a number`, () => {
-  expect(getAngleType("not a number")).toEqual("Invalid angle");
-});