Remove lfs_check feature flag

lib/gitlab/checks/lfs_check.rb

@@ -7,7 +7,6 @@ module Gitlab
       ERROR_MESSAGE = 'LFS objects are missing. Ensure LFS is properly set up or try a manual "git lfs push --all".'
 
       def validate!
-        return unless Feature.enabled?(:lfs_check, default_enabled: true)
         return unless project.lfs_enabled?
         return if skip_lfs_integrity_check
 

spec/lib/gitlab/checks/lfs_check_spec.rb

@@ -27,18 +27,6 @@ RSpec.describe Gitlab::Checks::LfsCheck do
         allow(project).to receive(:lfs_enabled?).and_return(true)
       end
 
-      context 'with lfs_check feature disabled' do
-        before do
-          stub_feature_flags(lfs_check: false)
-        end
-
-        it 'skips integrity check' do
-          expect_any_instance_of(Gitlab::Git::LfsChanges).not_to receive(:new_pointers)
-
-          subject.validate!
-        end
-      end
-
       context 'deletion' do
         let(:changes) { { oldrev: oldrev, ref: ref } }