Drop nav divider mixin

MartijnCuppens · MartijnCuppens · commit 0aabaa209d87 · 2019-08-22T08:10:44.000+02:00
diff --git a/scss/_dropdown.scss b/scss/_dropdown.scss
@@ -113,7 +113,10 @@
 
 // Dividers (basically an `<hr>`) within the dropdown
 .dropdown-divider {
-  @include nav-divider($dropdown-divider-bg, $dropdown-divider-margin-y);
+  height: 0;
+  margin: $dropdown-divider-margin-y 0;
+  overflow: hidden;
+  border-top: 1px solid $dropdown-divider-bg;
 }
 
 // Links, buttons, and more within the dropdown menu
diff --git a/scss/_mixins.scss b/scss/_mixins.scss
@@ -27,7 +27,6 @@
 @import "mixins/pagination";
 @import "mixins/lists";
 @import "mixins/list-group";
-@import "mixins/nav-divider";
 @import "mixins/forms";
 @import "mixins/table-row";
 
diff --git a/scss/mixins/_nav-divider.scss b/scss/mixins/_nav-divider.scss
diff --git a/site/content/docs/4.3/migration.md b/site/content/docs/4.3/migration.md
@@ -23,9 +23,10 @@ See the browser and devices page for details on what is currently supported in B
 Changes to our source Sass files and compiled CSS.
 
 - Removed `hover`, `hover-focus`, `plain-hover-focus`, and `hover-focus-active` mixins. Use regular CSS syntax for these moving forward. [See #28267](https://github.com/twbs/bootstrap/pull/28267).
-- **Todo:** Remove previously deprecated mixins
+- Remove previously deprecated mixins
   - `float()`
   - `form-control-mixin()`
+  - `nav-divider()`
   - `retina-img()`
   - `text-hide()` (also dropped the associated utility class, `.text-hide`)
   - `visibility()`
