Javascript: Recursively remove select keys

I have a huge Javascript array (20MB).
The following code doesn’t work, I need to recursively search the big array, and delete any entrie where the array key matching an item in the removal list.

let largeArray = //Call's to API.
smallArray = clean(largeArray);
let removal = ["geocoded_waypoints", "request", "routes"];
console.log("Routes: " + smallArray);


function clean(obj) {
    // For each item in the multidomensional array.
    Object.keys(obj).forEach(key => {

        // For each item in the removal array. Check it if needs to be removed.
        let removeThis = false;
        removal.every((element) => {
            if (key === element) {
                removeThis = true;
            }
        });

        // Check if the array is a value, or an array. loop recursively as required.
        if (removeThis === false) {
            if (typeof obj[key] === 'object') {
                // Item needs to be kept, if it's an array, recurse.
                obj[key] = clean(obj[key]);
            }
        } else {
            console.log("Removing: Key: " + key + ", Value: " + obj[key]);
            delete obj[key];
        }
    });

    return obj;
}