You have an option to eradicate the filter feature in the Collection pages. Inactivating this feature is available in Debutify 3.0.

STEP 1. In your Shopify Admin, select Online Store.

STEP 2. On the right portion of the page, go to your 3.0 theme and click on Customize.

STEP 3. On the top menu, select Collection pages from the drop-down list.

STEP 4. On the left panel of the page, under Collection pages, tap Collection pages.

STEP 5. Untick the following actions under SORTING & FILTERING section to remove filter by in Collection pages.

STEP 6. Click on Save to apply changes.