updated button docs

`$is-input` was removed in 1fcdd26033f0fe77ac4648c4518d53ad93fd3c39

diff --git a/doc/includes/buttons/examples_buttons_custom_mixin.html b/doc/includes/buttons/examples_buttons_custom_mixin.html
index 07cc755c54fba7e2afe15dfc46e0f2f4b580887a..10bca3928f14b211735bdb2a1e266478ccff602a 100644 (file)
--- a/doc/includes/buttons/examples_buttons_custom_mixin.html
+++ b/doc/includes/buttons/examples_buttons_custom_mixin.html
@@ -12,9 +12,7 @@
     // We can set $full-width:true to remove side padding extend width. Default:false
     $full-width,
     // We can set $disabled:true to create a disabled transparent button. Default:false
-    $disabled,
-    // $is-input - <input>s and <button>s take on strange padding. We added this to help fix that. Default:false
-    $is-input
+    $disabled
   );
 }