Revert "getitem and delitem implemented on resource group"

This reverts commit 9c6303cc

orchestrator/model/resources.py

@@ -130,12 +130,6 @@ class ResourceGroup(Resource):
         except InvalidResourceException:
             del self.__resources[resource.id]
 
-    def __getitem__(self, resource_id):
-        return self.__resources[resource_id]
-
-    def __delitem__(self, resource_id):
-        self.remove(self[resource_id])
-
     @property
     def resources(self):
         return list(self.__resources.values())

tests/test_resources.py

-from __future__ import print_function
-
 import copy
 import json
 from unittest.case import TestCase
@@ -210,40 +208,7 @@ class ResourceGroupTest(TestCase):
         # then
         self.assertEqual([], group.resources)
 
-    def test_resource_group_del_item_by_id(self):
-        # given
-        expected_resource_id = 'some_resource'
-        expected_resource = Instance(id=expected_resource_id)
-        group = ResourceGroup(resources=[expected_resource])
-
-        # when
-        del group[expected_resource_id]
-
-        # then
-        self.assertNotIn(expected_resource, group.resources)
-
-    def test_resource_group_del_invalid_id(self):
-        # given
-        group = ResourceGroup()
-
-        # then
-        with self.assertRaises(KeyError):
-            del group['invalid_resource_id']
-
-    def test_resource_group_get_item_by_id(self):
-        # given
-        expected_resource_id = 'some_resource'
-        expected_resource = Instance(id=expected_resource_id)
-        group = ResourceGroup(resources=[expected_resource])
-
-        # when
-        result = group[expected_resource_id]
-
-        # then
-        self.assertEqual(expected_resource, result)
-        with self.assertRaises(KeyError):
-            print(group['invalid_resource_id'])
-
+    # @skip('works same way as resource addition')
     def test_resource_group_addition(self):
         # given
         group1 = ResourceGroup()