Remove unnecessary ::mini subscription on model in TextEditorComponent

src/text-editor-component.coffee

@@ -218,7 +218,6 @@ TextEditorComponent = React.createClass
 
   observeEditor: ->
     {editor} = @props
-    @subscribe editor.onDidChangeMini(@setMini)
     @subscribe editor.observeGrammar(@onGrammarChanged)
     @subscribe editor.observeCursors(@onCursorAdded)
     @subscribe editor.observeSelections(@onSelectionAdded)
@@ -779,9 +778,6 @@ TextEditorComponent = React.createClass
   setShowIndentGuide: (showIndentGuide) ->
     atom.config.set("editor.showIndentGuide", showIndentGuide)
 
-  setMini: ->
-    @requestUpdate()
-
   # Deprecated
   setInvisibles: (invisibles={}) ->
     grim.deprecate "Use config.set('editor.invisibles', invisibles) instead"