Replace obsolete normalize with a lightweight reset.

assets/sass/base/interactive/_interactive.scss

@@ -1,33 +0,0 @@
-// Interactive
-
-// Details
-
-details {
-  // Add the correct display in Edge, IE, and Firefox.
-  display: block;
-}
-
-summary {
-  // Add the correct display in all browsers.
-  display: list-item;
-}
-
-// Menu
-
-menu {
-  // Set 1 unit of vertical rhythm on the top and bottom margin.
-  @include margin(1 0);
-  // Set consistent space for the list style image.
-  padding: 0 0 0 $indent-amount;
-
-  @include rtl {
-    padding: 0 $indent-amount 0 0;
-  }
-
-  // Turn off margins on nested lists.
-  menu &,
-  ol &,
-  ul & {
-    margin: 0;
-  }
-}