Remove unnecessary freeze in app

app/presenters/ci/build_runner_presenter.rb

@@ -4,8 +4,8 @@ module Ci
   class BuildRunnerPresenter < SimpleDelegator
     include Gitlab::Utils::StrongMemoize
 
-    RUNNER_REMOTE_TAG_PREFIX = 'refs/tags/'.freeze
-    RUNNER_REMOTE_BRANCH_PREFIX = 'refs/remotes/origin/'.freeze
+    RUNNER_REMOTE_TAG_PREFIX = 'refs/tags/'
+    RUNNER_REMOTE_BRANCH_PREFIX = 'refs/remotes/origin/'
 
     def artifacts
       return unless options[:artifacts]

app/uploaders/object_storage.rb

@@ -23,7 +23,7 @@ module ObjectStorage
     end
   end
 
-  TMP_UPLOAD_PATH = 'tmp/uploads'.freeze
+  TMP_UPLOAD_PATH = 'tmp/uploads'
 
   module Store
     LOCAL = 1

app/workers/hashed_storage/base_worker.rb

@@ -5,7 +5,7 @@ module HashedStorage
     include ExclusiveLeaseGuard
 
     LEASE_TIMEOUT = 30.seconds.to_i
-    LEASE_KEY_SEGMENT = 'project_migrate_hashed_storage_worker'.freeze
+    LEASE_KEY_SEGMENT = 'project_migrate_hashed_storage_worker'
 
     protected
 

app/workers/stuck_ci_jobs_worker.rb

@@ -4,7 +4,7 @@ class StuckCiJobsWorker
   include ApplicationWorker
   include CronjobQueue
 
-  EXCLUSIVE_LEASE_KEY = 'stuck_ci_builds_worker_lease'.freeze
+  EXCLUSIVE_LEASE_KEY = 'stuck_ci_builds_worker_lease'
 
   BUILD_RUNNING_OUTDATED_TIMEOUT = 1.hour
   BUILD_PENDING_OUTDATED_TIMEOUT = 1.day