BusDeals Today review for Discount Ninja Promo Engine

Why is it that, after I uninstall your app, it leaves behind all its code in my theme? And when I try to remove it I get errors all of my shop? Now I have all this unneeded bloatware in my theme and no way to remove it? limoniapps-discountninja-additionalproduct.liquid limoniapps-discountninja-badge.liquid limoniapps-discountninja-body.liquid limoniapps-discountninja-cartdiscountfield.liquid limoniapps-discountninja-context.liquid limoniapps-discountninja-context-settings.liquid limoniapps-discountninja-giftbox.liquid limoniapps-discountninja-header.liquid-old limoniapps-discountninja-notification.liquid limoniapps-discountninja-popup.liquid limoniapps-discountninja-promotionsummary.liquid limoniapps-discountninja-stickybar.liquid limoniapps-discountninja-triggerbutton.liquid-old limoniapps-discountninja-volumediscounts.liquid limoniapps-fontawesome-webfont.ttf limoniapps-fontawesome-webfont.woff limoniapps-fontawesome-webfont.woff2