fixed navbars fixings

docs/assets/css/bootstrap.css

@@ -3223,17 +3223,10 @@ fieldset[disabled] .btn-link:hover {
   right: 0;
   left: 0;
   z-index: 1030;
-  padding-right: 0;
-  padding-left: 0;
   margin-bottom: 0;
-  border-width: 0 0 1px;
   border-radius: 0;
 }
 
-.navbar-fixed-bottom {
-  border-width: 1px 0 0;
-}
-
 .navbar-static-top .container,
 .navbar-fixed-top .container,
 .navbar-fixed-bottom .container {

less/navbar.less

@@ -157,14 +157,8 @@
   left: 0;
   z-index: @zindex-navbar-fixed;
   margin-bottom: 0; // remove 18px margin for default navbar
-  border-width: 0 0 1px;
-  padding-left:  0;
-  padding-right: 0;
   border-radius: 0;
 }
-.navbar-fixed-bottom {
-  border-width: 1px 0 0;
-}
 
 // Reset container width
 // Required here as we reset the width earlier on and the grid mixins don't override early enough