Drop http_default_timeouts feature flag

changelogs/unreleased/233109-drop-feature-flag.yml

+---
+title: Stricter default timeouts for outgoing HTTP requests
+merge_request: 39188
+author:
+type: other

lib/gitlab/http.rb

@@ -35,7 +35,7 @@ module Gitlab
     def self.perform_request(http_method, path, options, &block)
       log_info = options.delete(:extra_log_info)
       options_with_timeouts =
-        if !options.has_key?(:timeout) && Feature.enabled?(:http_default_timeouts)
+        if !options.has_key?(:timeout)
           options.with_defaults(DEFAULT_TIMEOUT_OPTIONS)
         else
           options

spec/lib/gitlab/http_spec.rb

@@ -157,17 +157,6 @@ RSpec.describe Gitlab::HTTP do
         described_class.put('http://example.org', write_timeout: 1)
       end
     end
-
-    context 'when default timeouts feature is disabled' do
-      it 'does not apply any defaults' do
-        stub_feature_flags(http_default_timeouts: false)
-        expect(described_class).to receive(:httparty_perform_request).with(
-          Net::HTTP::Get, 'http://example.org', open_timeout: 1
-        ).and_call_original
-
-        described_class.get('http://example.org', open_timeout: 1)
-      end
-    end
   end
 
   describe '.try_get' do