.deleteMutatedBy(observable, [key], observableOrDependencyRecord)

Unregister a mutation dependency between an observable and optional key, to one or many observables.

Call this method with the exact same arguments passed to addMutatedBy to delete the mutation dependency, make sure to do this if the event handler that introduced the mutation dependency in the first place is unbound at some point.

The following example shows to to delete the mutation dependency when the event handler is unbound:

import canReflect from "can-reflect";
import SimpleObservable from "can-simple-observable";
import canReflectDeps from "can-reflect-dependencies";

const one = new SimpleObservable( "one" );
const two = new SimpleObservable( "two" );

const cb = function() {
    two.set( /* new value */ );
};

canReflect.onValue( one, cb );
canReflect.addMutatedBy( two, one );

// ...

if ( shouldUnbound ) {
    canReflect.offValue( one, cb );
    canReflect.deleteMutatedBy( two, one );
}

Check the addMutatedBy documentation to learn the different ways mutation dependencies can be registered.