Airline: remove box border

lisp/mitch-packages.el

@@ -376,14 +376,7 @@ targets."
   (airline-cursor-colors nil)
   (airline-display-directory t)
   (airline-eshell-colors nil)
-  (airline-shortened-directory-length 20)
-  ;; (airline-utf-glyph-separator-left (string-to-char ""))
-  ;; (airline-utf-glyph-separator-right (string-to-char ""))
-  :custom-face
-  (mode-line
-   ((t
-     (:box (:line-width 2 :style released-button)
-	   (:height (:inherit 'fixed-pitch)))))))
+  (airline-shortened-directory-length 20))
 
 ;; Themes are weird and stupid
 ;; (use-package xemacs-theme