remove unneeded test

compiler/reporting/tests/test_reporting.rs

@@ -3847,31 +3847,4 @@ mod test_reporting {
             ),
         )
     }
-
-    #[test]
-    fn foobar() {
-        report_problem_as(
-            indoc!(
-                r#"
-                Num.addChecked 1 2
-                "#
-            ),
-            indoc!(
-                r#"
-            ── REDUNDANT PATTERN ───────────────────────────────────────────────────────────
-
-            The 3rd pattern is redundant:
-
-            1│  when Foo 1 2 3 is
-            2│      Foo _ 1 _ -> 1
-            3│      _ -> 2
-            4│      _ -> 3
-                    ^
-
-            Any value of this shape will be handled by a previous pattern, so this
-            one should be removed.
-            "#
-            ),
-        )
-    }
 }