You canât remove the feature completely. Itâs possible to disable almost all of its features.
In the Settings app, go to Siri & Search. At the top, youâll find âAsk Siriâ. There, open âListen forâ and make sure to select Off. Below âListen forâ, disable âPress Side Button for Siriâ. Then go to âMessaging with Siriâ and disable Automatically Send Messages.
Under âAsk Siriâ, thereâs âBefore Searchingâ. Go to âShow Suggestionsâ and disable it.
Further down in Siri & Search, youâll find âSuggestions from Appleâ. Turn off all four of them.
Below that, youâll find a list of apps. Youâll have to select every single app, and toggle off everything you find there.