Remove example GitLab patches

Support for gitlab-git-http-server got merged upstream:
https://gitlab.com/gitlab-org/gitlab-ce/commit/d64ae5363fc17bf5592bc1a66a53763ddb9a3acc

0001-Use-grack-for-authn-authz-only.patch

-From c5e9a50802e2b95f657dfaa2eaba98378b0a845d Mon Sep 17 00:00:00 2001
-From: GitLab <example@example.com>
-Date: Sun, 26 Jul 2015 01:12:12 +0200
-Subject: [PATCH 1/2] Use grack for authn/authz only
-
-Actual Git content will be served by gitlab-git-http-server.
----
- lib/gitlab/backend/grack_auth.rb |    3 ++-
- lib/gitlab/backend/shell_env.rb  |    6 +++++-
- 2 files changed, 7 insertions(+), 2 deletions(-)
-
-diff --git a/lib/gitlab/backend/grack_auth.rb b/lib/gitlab/backend/grack_auth.rb
-index 03cef30..92e967d 100644
---- a/lib/gitlab/backend/grack_auth.rb
-+++ b/lib/gitlab/backend/grack_auth.rb
-@@ -26,7 +26,8 @@ module Grack
-       auth!
- 
-       if project && authorized_request?
--        @app.call(env)
-+        # Tell gitlab-git-http-server the request is OK, and what the GL_ID is
-+        return [200, { "Content-Type" => "text/plain" }, [Gitlab::ShellEnv.gl_id(@user)]]
-       elsif @user.nil? && !@gitlab_ci
-         unauthorized
-       else
-diff --git a/lib/gitlab/backend/shell_env.rb b/lib/gitlab/backend/shell_env.rb
-index 17ec029..009a3ec 100644
---- a/lib/gitlab/backend/shell_env.rb
-+++ b/lib/gitlab/backend/shell_env.rb
-@@ -7,7 +7,7 @@ module Gitlab
-     def set_env(user)
-       # Set GL_ID env variable
-       if user
--        ENV['GL_ID'] = "user-#{user.id}"
-+        ENV['GL_ID'] = gl_id(user)
-       end
-     end
- 
-@@ -15,5 +15,9 @@ module Gitlab
-       # Reset GL_ID env variable
-       ENV['GL_ID'] = nil
-     end
-+
-+    def gl_id(user)
-+      "user-#{user.id}"
-+    end
-   end
- end
--- 
-1.7.9.5
-

0002-NGINX-config-for-gitlab-git-http-server.patch

-From d1526f7adf0664eed0ccb97da620869b74f5290b Mon Sep 17 00:00:00 2001
-From: GitLab <example@example.com>
-Date: Sun, 26 Jul 2015 01:46:32 +0200
-Subject: [PATCH 2/2] NGINX config for gitlab-git-http-server
-
----
- lib/support/nginx/gitlab-ssl |   23 +++++++++++++++++++++++
- 1 file changed, 23 insertions(+)
-
-diff --git a/lib/support/nginx/gitlab-ssl b/lib/support/nginx/gitlab-ssl
-index 766559b..ff68f03 100644
---- a/lib/support/nginx/gitlab-ssl
-+++ b/lib/support/nginx/gitlab-ssl
-@@ -42,6 +42,10 @@ upstream gitlab {
-   server unix:/home/git/gitlab/tmp/sockets/gitlab.socket fail_timeout=0;
- }
- 
-+upstream gitlab-git-http-server {
-+  server localhost:8181;
-+}
-+
- ## Redirects all HTTP traffic to the HTTPS host
- server {
-   ## Either remove "default_server" from the listen line below, 
-@@ -156,6 +160,25 @@ server {
-     proxy_pass http://gitlab;
-   }
- 
-+  location ~ [-\/\w\.]+\.git\/ {
-+    ## If you use HTTPS make sure you disable gzip compression
-+    ## to be safe against BREACH attack.
-+    gzip off;
-+
-+    ## https://github.com/gitlabhq/gitlabhq/issues/694
-+    ## Some requests take more than 30 seconds.
-+    proxy_read_timeout      300;
-+    proxy_connect_timeout   300;
-+    proxy_redirect          off;
-+
-+    proxy_set_header    Host                $http_host;
-+    proxy_set_header    X-Real-IP           $remote_addr;
-+    proxy_set_header    X-Forwarded-Ssl     on;
-+    proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
-+    proxy_set_header    X-Forwarded-Proto   $scheme;
-+    proxy_pass http://gitlab-git-http-server;
-+  }
-+
-   ## Enable gzip compression as per rails guide:
-   ## http://guides.rubyonrails.org/asset_pipeline.html#gzip-compression
-   ## WARNING: If you are using relative urls remove the block below
--- 
-1.7.9.5
-