Angular 8/Sass: Find unused css classes
There are a lot of IDE plugins for that.
On my case I use https://marketplace.visualstudio.com/items?itemName=rcore.rcore-unused-css-classes from Visual Studio Code Extensions
Deleting unused component.scss file from angular folder
If you do not need component.scss, of course you can delete it.
BTW, you can skip creating it when generate the component using angular cli.
ng g c yourComponent -is
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