[Chartjs][Notify][React][Svelte] Remove StimulusHelper deprecation for 3.0

[smnandre]

Q	A
Bug fix?	no
New feature?	yes
Deprecations?	no
Documentation?	no
Issues	Fix #...
License	MIT

Remove this check (or same-ish) in these ux pacakges

        if ($stimulus instanceof StimulusTwigExtension) {
            trigger_deprecation('symfony/ux-chartjs', '2.9', 'Passing an instance of "%s" to "%s" is deprecated, pass an instance of "%s" instead.', StimulusTwigExtension::class, __CLASS__, StimulusHelper::class);
            $stimulus = new StimulusHelper(null);
        }

[Kocal]

Thank you @smnandre.