In order to remove a ServerId it must be wrapped in the same way as it was wrapped when it was put into the map

Signed-off-by: Vladyslav Oleniuk <vlad.oleniuk@gmail.com>
ServerId is wrapped also in the removeAllForValue method

Signed-off-by: Vladyslav Oleniuk <vlad.oleniuk@gmail.com>
Merge pull request #957 from kiwigrid/correct-removal-from-async-multi-map

In order to remove a ServerId it must be wrapped in the same way as it w...