Remove rails variant

Author: moyus

docs/src/content/nav.md

@@ -48,42 +48,6 @@ Generic content navigation.
 
 ## Variants
 
-### Rails
-
-By adding `.nav--rails` modifier class on `.nav` element to create rails styled nav
-
-<ul class="nav nav--rails mb-6">
-  <li class="nav__item is-active">
-    <a href="#" class="nav__link">Home</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link">Link</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link">Another Link</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link is-disabled">Disabled</a>
-  </li>
-</ul>
-
-```html
-<ul class="nav nav--rails">
-  <li class="nav__item is-active">
-    <a href="#" class="nav__link">Home</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link">Link</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link">Another Link</a>
-  </li>
-  <li class="nav__item">
-    <a href="#" class="nav__link is-disabled">Disabled</a>
-  </li>
-</ul>
-```
-
 ### Pills
 
 By adding `.nav--pills` modifier class on `.nav` element to create pills styled nav

scss/_components.nav.scss

@@ -115,7 +115,7 @@ $nav-tabs-active-bg: $component-bg !default;
   }
 }
 
-.nav.nav--rails {
+.nav.nav--tabs {
   border-bottom: $nav-border-width solid $nav-border-color;
 
   > .nav__item {
@@ -136,30 +136,3 @@ $nav-tabs-active-bg: $component-bg !default;
   }
 }
 
-.nav.nav--tabs {
-  border-bottom: $nav-border-width solid $nav-border-color;
-
-  > .nav__item {
-    &:not(:last-child) {
-      margin-right: $spacing-stack-xxs;
-    }
-
-    > .nav__link {
-      margin: 0 0 (0 - $nav-border-width) 0;
-      padding: 0.375em 0.75em;
-      border-style: solid;
-      border-width: $nav-border-width $nav-border-width 0 $nav-border-width;
-      border-color: transparent;
-      border-radius: $component-border-radius-md $component-border-radius-md 0 0;
-    }
-
-    &.is-active {
-      > .nav__link {
-        color: $grey-dark;
-        border-color: $nav-border-color;
-        background-color: $nav-tabs-active-bg;
-      }
-    }
-  }
-}
-