remove encode lib, clean all encoded area.

app/controllers/blob_controller.rb

@@ -1,7 +1,6 @@
 # Controller for viewing a file's blame
 class BlobController < ProjectResourceController
   include ExtractsPath
-  include Gitlab::Encode
 
   # Authorize
   before_filter :authorize_read_project!

app/controllers/refs_controller.rb

@@ -1,5 +1,4 @@
 class RefsController < ProjectResourceController
-  include Gitlab::Encode
 
   # Authorize
   before_filter :authorize_read_project!

app/models/commit.rb

@@ -1,6 +1,5 @@
 class Commit
   include ActiveModel::Conversion
-  include Gitlab::Encode
   include StaticModel
   extend ActiveModel::Naming
 
@@ -112,7 +111,7 @@ class Commit
   end
 
   def safe_message
-    @safe_message ||= utf8 message
+    @safe_message ||= message
   end
 
   def created_at
@@ -124,7 +123,7 @@ class Commit
   end
 
   def author_name
-    utf8 author.name
+    author.name
   end
 
   # Was this commit committed by a different person than the original author?
@@ -133,7 +132,7 @@ class Commit
   end
 
   def committer_name
-    utf8 committer.name
+    committer.name
   end
 
   def committer_email

app/models/tree.rb

@@ -8,7 +8,7 @@ class Tree
   def initialize(raw_tree, project, ref = nil, path = nil)
     @project, @ref, @path = project, ref, path
     @tree = if path.present?
-              raw_tree / path.dup.force_encoding('ascii-8bit')
+              raw_tree / path
             else
               raw_tree
             end

app/views/blame/show.html.haml

@@ -15,7 +15,7 @@
     .file_title
       %i.icon-file
       %span.file_name
-        = @tree.name.force_encoding('utf-8')
+        = @tree.name
         %small= number_to_human_size @tree.size
       %span.options= render "tree/blob_actions"
     .file_content.blame
@@ -32,4 +32,4 @@
             %td.lines
               = preserve do
                 %pre
-                  = Gitlab::Encode.utf8 lines.join("\n")
+                  = lines.join("\n")

app/views/tree/_blob.html.haml

@@ -2,7 +2,7 @@
   .file_title
     %i.icon-file
     %span.file_name
-      = blob.name.force_encoding('utf-8')
+      = blob.name
       %small= number_to_human_size blob.size
     %span.options= render "tree/blob_actions"
   - if blob.text?

app/views/tree/edit.html.haml

@@ -4,7 +4,7 @@
       .file_title
         %i.icon-file
         %span.file_name
-          = "#{@tree.path.force_encoding('utf-8')} (#{@ref})"
+          = "#{@tree.path} (#{@ref})"
       .file_content.code
         #editor= @tree.data