Logic around array removeKey seems wrong about diff-json

[0x80]

Here is an implementation that I think might be correct. It does a deep comparison on the value and throws and error if the item can not be found in the array.

function removeKey(obj: JsonObject | JsonArray, key: string, value: JsonValue) {
  if (Array.isArray(obj)) {
    if (!isEqual(obj[Number(key)], value)) {
      const index = obj.findIndex((x) => isEqual(x, value));
      assertMsg(
        index !== -1,
        `Failed to find value ${value} to remove from array ${JSON.stringify(
          obj,
        )}`,
      );
      return obj.splice(index, 1);
    } else {
      return obj.splice(Number(key), 1);
    }
  } else {
    return delete obj[key];
  }
}