Merge pull request #788 from ethereum/fixdebuggerUI

Remove `display box` style in debugger

src/app/tabs/debugger-tab.js

@@ -2,16 +2,12 @@ var yo = require('yo-yo')
 
 // -------------- styling ----------------------
 var csjs = require('csjs-inject')
-var remix = require('ethereum-remix')
-var styleGuide = remix.ui.styleGuide
-var styles = styleGuide()
 
 var css = csjs`
   .debuggerTabView {
     padding: 2%;
   }
   .debugger {
-    ${styles.displayBox}
     margin-bottom: 1%;
   }
 `