Remove npm packages fixtures for another MR

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

config/initializers/seed_fu_fixtures.rb

-# frozen_string_literal: true
-# Include EE-only fixtures into seed_fu
-SeedFu.fixture_paths.push("#{Rails.root}/ee/db/fixtures/#{Rails.env}")

ee/db/fixtures/development/25_packages.rb

-# frozen_string_literal: true
-require './spec/support/sidekiq'
-
-Sidekiq::Testing.inline! do
-  Gitlab::Seeder.quiet do
-    user = User.first
-    group_path = 'foo'
-    project_path = 'bar'
-    full_path = "#{group_path}/#{project_path}"
-    package_name = "@#{full_path}"
-
-    group = Group.find_by(path: group_path)
-
-    unless group
-      group = Group.new(
-        name: group_path,
-        path: group_path
-      )
-      group.description = FFaker::Lorem.sentence
-      group.save
-
-      group.add_owner(user)
-    end
-
-    project = Project.find_by_full_path(full_path)
-
-    unless project
-      params = {
-        namespace_id: group.id,
-        name: project_path,
-        description: FFaker::Lorem.sentence,
-        visibility_level: Gitlab::VisibilityLevel::PRIVATE,
-        skip_disk_validation: true
-      }
-
-      project = Projects::CreateService.new(user, params).execute
-    end
-
-    (1..10).each do |patch|
-      version = "1.0.#{patch}"
-
-      params = {
-        name:  package_name,
-        versions: {
-          version => {
-            dist: {
-              shasum: 'f572d396fae9206628714fb2ce00f72e94f2258f'
-            }
-          }
-        },
-        '_attachments' => {
-          "#{package_name}-#{version}.tgz" => {
-            'data' => 'aGVsbG8K',
-            'length' => 8
-          }
-        }
-      }
-
-      ::Packages::CreateNpmPackageService
-        .new(project, user, params).execute
-
-      print '.'
-    end
-  end
-end