Drop unused CI tables and files

app/services/ci/web_hook_service.rb

-module Ci
-  class WebHookService
-    def build_end(build)
-      execute_hooks(build.project, build_data(build))
-    end
-
-    def execute_hooks(project, data)
-      project.web_hooks.each do |web_hook|
-        async_execute_hook(web_hook, data)
-      end
-    end
-
-    def async_execute_hook(hook, data)
-      Sidekiq::Client.enqueue(Ci::WebHookWorker, hook.id, data)
-    end
-
-    def build_data(build)
-      project = build.project
-      data = {}
-      data.merge!({
-        build_id: build.id,
-        build_name: build.name,
-        build_status: build.status,
-        build_started_at: build.started_at,
-        build_finished_at: build.finished_at,
-        project_id: project.id,
-        project_name: project.name,
-        gitlab_url: project.gitlab_url,
-        ref: build.ref,
-        before_sha: build.before_sha,
-        sha: build.sha,
-      })
-    end
-  end
-end

db/migrate/20160824103857_drop_unused_ci_tables.rb

+class DropUnusedCiTables < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def change
+    drop_table(:ci_services)
+    drop_table(:ci_web_hooks)
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160823081327) do
+ActiveRecord::Schema.define(version: 20160824103857) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -295,16 +295,6 @@ ActiveRecord::Schema.define(version: 20160823081327) do
   add_index "ci_runners", ["locked"], name: "index_ci_runners_on_locked", using: :btree
   add_index "ci_runners", ["token"], name: "index_ci_runners_on_token", using: :btree
 
-  create_table "ci_services", force: :cascade do |t|
-    t.string   "type"
-    t.string   "title"
-    t.integer  "project_id",                 null: false
-    t.datetime "created_at"
-    t.datetime "updated_at"
-    t.boolean  "active",     default: false, null: false
-    t.text     "properties"
-  end
-
   create_table "ci_sessions", force: :cascade do |t|
     t.string   "session_id", null: false
     t.text     "data"
@@ -360,13 +350,6 @@ ActiveRecord::Schema.define(version: 20160823081327) do
 
   add_index "ci_variables", ["gl_project_id"], name: "index_ci_variables_on_gl_project_id", using: :btree
 
-  create_table "ci_web_hooks", force: :cascade do |t|
-    t.string   "url",        null: false
-    t.integer  "project_id", null: false
-    t.datetime "created_at"
-    t.datetime "updated_at"
-  end
-
   create_table "deploy_keys_projects", force: :cascade do |t|
     t.integer  "deploy_key_id", null: false
     t.integer  "project_id",    null: false