update.rb in mongo-2.18.2

- old
+ new

@@ -13,10 +13,9 @@
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-require 'mongo/operation/update/command'
 require 'mongo/operation/update/op_msg'
 require 'mongo/operation/update/result'
 require 'mongo/operation/update/bulk_result'
 
 module Mongo