First: Container is the component, which allows authors to add more components to the page by Drag-n-drop etc.
If we take container out, we would have to pre-configure all components that a page can hold. Basically hard-code the structure
Second: The benefits that editable template provide like structure updates are auto-synced to pages, or author can resize components, will also be lost ...
In summary, we cannot get rid of it
We can disable Layout Option to stop authors from resizing containers.
But, we cannot remove Layout containers and we cannot remove their elements. Its thats what you meant by disabling. In case you meant something else, please elaborate
You just need to use the 'container' component, which is the recommended one (this inherits from the layout component). Usually, you should have your own container component extended from the core component. Then you can simply select the 'Simple' option from the layout options. Doing this at the template level will do the trick.
Learn more about the container component here: https://experienceleague.adobe.com/docs/experience-manager-core-components/using/wcm-components/cont...
Hope this helps