code: Observable<ComapiResult<Void>> doRemoveParticipants(@NonNull final String token, @NonNull final String conversationId, @NonNull final List<String> ids) {
          return wrapObservable(service.deleteParticipants(AuthManager.addAuthPrefix(token), apiSpaceId, conversationId, ids).map(mapToComapiResult()), log, "Removing participants from " + conversationId);
      }
docs: Returns observable to remove list of participants from a conversation.
  
  @param token          Comapi access token.
  @param conversationId ID of a conversation to delete.
  @param ids            List of participant ids to be removed.
  @return Observable to remove list of participants from a conversation.