remove expired runtime flag: envoy.reloadable_features.validate_detailed_override_host_statuses

[wbpcode]

Commit Message: remove expired runtime flag: envoy.reloadable_features.validate_detailed_override_host_statuses
Additional Description:

To close #29103.

Risk Level:
Testing:
Docs Changes:
Release Notes:
Platform Specific Features:
[Optional Runtime guard:]
[Optional Fixes #Issue]
[Optional Fixes commit #PR or SHA]
[Optional Deprecated:]
[Optional API Considerations:]

[repokitteh-read-only]

CC @envoyproxy/runtime-guard-changes: FYI only for changes made to (source/common/runtime/runtime_features.cc).

🐱

Caused by: #30446 was opened by wbpcode.

see: more, trace.

[alyssawilk]

baffled as to why this doesn't need main merge for the other flag update but if it works it works :-)

[TAOXUY]

Hi @wbpcode , removing this flag makes this flow(call route() in log() time when localReply is called before and route isn't inited) won't work anymore. Could you shed some light on how to this issue?

[wbpcode]

@TAOXUY are you sure that it's this patch that effect your flow?

This is only for a upstream host statues validation.

[wbpcode]

We do removed a related flag in the #30444. But it only effects the Envoy 1.29+ (note the 1.29 still in the development phase). And the bug that you noticed in the #28626 should has been fixed by #28875. That fix patch is already available in the Envoy 1.28.

[TAOXUY]

Thanks for the quick response! We will check after upgrading to 1.28.

[wbpcode]

Then any new reporting would be appreciated. 😄