[http] Remove legacy codecs

[asraa]

Signed-off-by: Asra Ali asraa@google.com

Commit Message: Removes legacy codecs.
Risk Level: Low, already default.
Testing: All existing tests remain the same, no functional changes.
Release Notes: added notice runtime flag and legacy code paths were removed.
Fixes: #10878

[yanavlasov]

LGTM. I think clang-tidy is pre-existing

[asraa]

Still getting a clang-tidy error despite //source/common/event:real_time_system_lib appearing in the deps of test_time_lib. I believe this is a flake/clang-tidy mistake? People have seen this before, not sure why. @lizan

Diagnostics:
- DiagnosticMessage:
    FileOffset: 23
    FilePath: ./test/test_common/test_time.h
    Message: '''common/event/real_time_system.h'' file not found'
    Replacements: []
  DiagnosticName: clang-diagnostic-error

[yanavlasov]

This looks like fixing the issue.

diff --git a/test/common/http/http2/BUILD b/test/common/http/http2/BUILD
index 8d8d149d1..8dca77e67 100644
--- a/test/common/http/http2/BUILD
+++ b/test/common/http/http2/BUILD
@@ -47,6 +47,7 @@ envoy_cc_test_library(
     external_deps = ["abseil_optional"],
     deps = [
         "//source/common/http/http2:codec_lib",
+        "//test/mocks:common_lib",
     ],
 )

[asraa]

Wow, thanks -- I should have scrolled more through the logs to see the pointer to test util. Fixed.

[mattklein123]

Congratulations @asraa!!! Very nicely done. 🎉

[asraa]

Lots of code removed! Hope it goes smooth :)