How to Remove Wiser's Leftover Code from Theme Files?

You can remove it by following the below process:
In your store admin, Click on Online store >> Themes >> Action >> Edit Code

Here in the left sidebar search for Index.liquid, product.liquid, cart.liquid & collection.liquid file.
You need to delete {% include "recently-viewed-products" %} from these files and save the changes.

Search and remove below provided codes from the following files theme.liquid, collection.liquid, product.liquid, cart.liquid, and index.liquid file.

{% include 'wiser' %}
{% include 'wiser_trending' %}
{% include 'wiser_recentview' %}
{% include 'wiser_newarrivals' %}
{% include 'wiser_featured' %}
{% include 'wiser_topselling' %}
{% include 'wiser_related' %}
{% include 'wiser_recommended' %}
{% include 'wiser_alsobought' %}
{% include 'wiser_recent_related' %}

Feel free to reachout to us at support@expertvillagemedia.com if you need our help in removing these codes.

Thanks
Kemi