Remove fibers tests

Author: hegelocampus

test/node_api/function_test.dart

@@ -287,95 +287,6 @@ void main() {
           data: "", functions: jsify({"foo(": allowInterop(neverCalled)})));
       expect(error.toString(), contains('Invalid signature'));
     });
-
-    group("with fibers", () {
-      setUpAll(() {
-        try {
-          fiber;
-        } catch (_) {
-          throw "Can't load fibers package.\n"
-              "Run pub run grinder before-test.";
-        }
-      });
-
-      test("runs a synchronous function", () {
-        expect(
-            render(RenderOptions(
-                data: "a {b: foo()}",
-                functions: jsify({
-                  "foo": allowInterop(
-                      (void _) => callConstructor(sass.types.Number, [1]))
-                }),
-                fiber: fiber)),
-            completion(equalsIgnoringWhitespace("a { b: 1; }")));
-      });
-
-      test("runs an asynchronous function", () {
-        expect(
-            render(RenderOptions(
-                data: "a {b: foo()}",
-                functions: jsify({
-                  "foo": allowInterop((void done(Object result)) {
-                    Timer(Duration.zero, () {
-                      done(callConstructor(sass.types.Number, [1]));
-                    });
-                  })
-                }),
-                fiber: fiber)),
-            completion(equalsIgnoringWhitespace("a { b: 1; }")));
-      });
-
-      test("reports a synchronous error", () async {
-        var error = await renderError(RenderOptions(
-            data: "a {b: foo()}",
-            functions:
-                jsify({"foo": allowInterop((void _) => throw "aw beans")}),
-            fiber: fiber));
-        expect(error.toString(), contains('aw beans'));
-      });
-
-      test("reports an asynchronous error", () async {
-        var error = await renderError(RenderOptions(
-            data: "a {b: foo()}",
-            functions: jsify({
-              "foo": allowInterop((void done(Object result)) {
-                Timer(Duration.zero, () {
-                  done(JSError("aw beans"));
-                });
-              })
-            }),
-            fiber: fiber));
-        expect(error.toString(), contains('aw beans'));
-      });
-
-      test("reports a null return", () async {
-        var error = await renderError(RenderOptions(
-            data: "a {b: foo()}",
-            functions: jsify({
-              "foo": allowInterop((void done(Object result)) {
-                Timer(Duration.zero, () {
-                  done(null);
-                });
-              })
-            }),
-            fiber: fiber));
-        expect(error.toString(), contains('must be a Sass value type'));
-      });
-
-      test("reports a call to done without arguments", () async {
-        var error = await renderError(RenderOptions(
-            data: "a {b: foo()}",
-            functions: jsify({
-              "foo": allowInterop((void done()) {
-                Timer(Duration.zero, () {
-                  done();
-                });
-              })
-            }),
-            fiber: fiber));
-        expect(error.toString(), contains('must be a Sass value type'));
-      });
-    });
   });
 
   // Node Sass currently doesn't provide any representation of first-class