Konstantin Kovshenin

Seriously, this plugin doesn’t do anything else. It just prevents WordPress from registering its default widgets.

Remove Default Widgets

Removes the default WordPress widgets. Period.

This is companion plugin is created for Marin theme. 
The plugin add custom frontpage sections for Marin theme and it will allow you full customizer settings for the theme front page sections. 
The plugin options are user-friendly and you can use this plugin for all marin child themes also.
Have any queries?

Marin Companion

Marin Companion is a companion plugin for Marin theme.

Remove Default Widgets vs Marin Companion