PYTHON-781 - Fix tests for multiple storage engines.

Remove a few seemingly pointless test cases that
aren't portable across server versions, storage engines,
etc.

test/test_collection.py

@@ -585,15 +585,6 @@ class TestCollection(unittest.TestCase):
 
     def test_options(self):
         db = self.db
-        db.drop_collection("test")
-        db.test.save({})
-        expected = {}
-        if version.at_least(db.connection, (2, 7, 0)):
-            # usePowerOf2Sizes server default
-            expected["flags"] = 1
-        self.assertEqual(db.test.options(), expected)
-        self.assertEqual(db.test.doesnotexist.options(), {})
-
         db.drop_collection("test")
         if version.at_least(db.connection, (1, 9)):
             db.create_collection("test", capped=True, size=4096)

test/test_database.py

@@ -105,21 +105,13 @@ class TestDatabase(unittest.TestCase):
         self.assertRaises(InvalidName, db.create_collection, "coll..ection")
 
         test = db.create_collection("test")
+        self.assertTrue(u"test" in db.collection_names())
         test.save({"hello": u"world"})
         self.assertEqual(db.test.find_one()["hello"], "world")
-        self.assertTrue(u"test" in db.collection_names())
 
         db.drop_collection("test.foo")
         db.create_collection("test.foo")
         self.assertTrue(u"test.foo" in db.collection_names())
-        expected = {}
-        if version.at_least(self.client, (2, 7, 0)):
-            # usePowerOf2Sizes server default
-            expected["flags"] = 1
-        result = db.test.foo.options()
-        # mongos 2.2.x adds an $auth field when auth is enabled.
-        result.pop('$auth', None)
-        self.assertEqual(result, expected)
         self.assertRaises(CollectionInvalid, db.create_collection, "test.foo")
 
     def test_collection_names(self):