refactor: removed paragon imports

Author: PKulkoRaccoonGang

example/index.scss

@@ -1,6 +1 @@
-@import url("https://cdn.jsdelivr.net/npm/@edx/brand-edx.org@alpha/dist/core.min.css");
-@import url("https://cdn.jsdelivr.net/npm/@edx/brand-edx.org@alpha/dist/light.min.css");
-@import "@edx/paragon/styles/scss/core/core";
-@import "@edx/paragon/styles/css/themes/light/index.css";
-
 @import "@edx/frontend-component-header/index";

src/index.scss

@@ -1,7 +1,3 @@
-$spacer: 1rem;
-$blue: #007db8;
-$white: #fff;
-
 @import './Menu/menu.scss';
 
 .dropdown-item a {