removed the branches endpoint

we already have branch info accessible via the repos endpoints, having this at the root level doesn't make sense.

lib/travis/api/app/endpoint/branches.rb

@@ -1,16 +0,0 @@
-require 'travis/api/app'
-
-class Travis::Api::App
-  class Endpoint
-    class Branches < Endpoint
-      get '/' do
-        respond_with service(:find_branches, params), type: :branches
-      end
-
-      # get '/:owner_name/:name/branches' do       # v1
-      # get '/repos/:owner_name/:name/branches' do # v2
-      #   respond_with service(:branches, :find_all, params), type: :branches
-      # end
-    end
-  end
-end

spec/integration/v1/branches_spec.rb

@@ -1,11 +0,0 @@
-require 'spec_helper'
-
-describe 'Branches' do
-  let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
-  let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.1+json' } }
-
-  it 'GET /branches?repository_id=:repository_id' do
-    response = get '/branches', { repository_id: repo.id }, headers
-    response.should deliver_json_for(repo.last_finished_builds_by_branches, version: 'v1', type: 'branches')
-  end
-end

spec/integration/v2/branches_spec.rb

@@ -1,11 +0,0 @@
-require 'spec_helper'
-
-describe 'Branches' do
-  let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
-  let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.2+json' } }
-
-  it 'GET /branches?repository_id=:repository_id' do
-    response = get '/branches', { repository_id: repo.id }, headers
-    response.should deliver_json_for(repo.last_finished_builds_by_branches, version: 'v2', type: 'branches')
-  end
-end

spec/unit/endpoint/branches_spec.rb

@@ -1,5 +0,0 @@
-require 'spec_helper'
-
-describe Travis::Api::App::Endpoint::Branches do
-  it 'has to be tested'
-end