diff --git a/less/mixins.less b/less/mixins.less
deleted file mode 100644
index 19e5a6457..000000000
--- a/less/mixins.less
+++ /dev/null
@@ -1,20 +0,0 @@
-// Mixins
-// --------------------------
-
-.fa-icon-rotate(@degrees, @rotation) {
-  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=@rotation);
-  -webkit-transform: rotate(@degrees);
-     -moz-transform: rotate(@degrees);
-      -ms-transform: rotate(@degrees);
-       -o-transform: rotate(@degrees);
-          transform: rotate(@degrees);
-}
-
-.fa-icon-flip(@horiz, @vert, @rotation) {
-  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=@rotation, mirror=1);
-  -webkit-transform: scale(@horiz, @vert);
-     -moz-transform: scale(@horiz, @vert);
-      -ms-transform: scale(@horiz, @vert);
-       -o-transform: scale(@horiz, @vert);
-          transform: scale(@horiz, @vert);
-}