Remove unused parameter

Author: aki77

lib/minimap-git-diff-binding.coffee

@@ -6,7 +6,7 @@ class MinimapGitDiffBinding
 
   active: false
 
-  constructor: (@gitDiff, @minimap) ->
+  constructor: (@minimap) ->
     @editor = @minimap.getTextEditor()
     @decorations = {}
     @markers = null

lib/minimap-git-diff.coffee

@@ -18,7 +18,6 @@ class MinimapGitDiff
 
   deactivate: ->
     @destroyBindings()
-    @gitDiff = null
     @minimap = null
 
   activatePlugin: ->
@@ -59,7 +58,7 @@ class MinimapGitDiff
 
       return unless editor?
 
-      binding = new MinimapGitDiffBinding @gitDiff, minimap
+      binding = new MinimapGitDiffBinding minimap
       @bindings.set(minimap, binding)
 
   getRepositories: -> atom.project.getRepositories().filter (repo) -> repo?