code: public void disableOAuth1AccessToken(DbxOAuth1AccessToken token)
          throws DbxException
      {
          if (token == null) throw new IllegalArgumentException("'token' can't be null");
          DbxRequestUtil.doPostNoAuth(
              requestConfig,
              DbxClientV1.USER_AGENT_ID,
              appInfo.getHost().getApi(),
              "1/disable_access_token",
              null,
              getHeaders(token),
              new DbxRequestUtil.ResponseHandler<Void>() {
                  @Override
                  public Void handle(HttpRequestor.Response response) throws DbxException {
                      if (response.getStatusCode() != 200) throw DbxRequestUtil.unexpectedStatus(response);
                      return null;
                  }
              }
          );
      }
docs: Tell the Dropbox API server to disable an OAuth 1 access token.