eth_uninstallFilter
Uninstalls a filter with given ID. This method should always be called when watching is no longer needed.
Additionally, filters time out when they aren't requested with
eth_getFilterChanges for a period of time. This method uses 80 credits from your daily balance.
Parameters
filter ID: A string denoting the ID of the filter to be uninstalled.
Returns
uninstalled flag: (boolean) true if the filter was successfully uninstalled, otherwise false.