Revert "gh-128691: Use deferred reference counting on _thread._local (#128693)"

[hugovk]

This reverts commit c141748.

Just as a test to check the buildbots: https://buildbot.python.org/#/builders/345/builds/9906

• Issue: threading.local() access should scale well from multiple threads #128691

[hugovk]

!buildbot AMD64 Debian root 3.x

[bedevere-bot]

The regex 'AMD64 Debian root 3.x' did not match any buildbot builder. Is the requested builder in the list of stable builders?

[hugovk]

!buildbot "AMD64 Debian root 3.x"

[bedevere-bot]

The regex '"AMD64 Debian root 3.x"' did not match any buildbot builder. Is the requested builder in the list of stable builders?

[hugovk]

!buildbot AMD64

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @hugovk for commit 26de5be 🤖

The command will test the builders whose names match following regular expression: AMD64

The builders matched are:

• AMD64 FreeBSD14 PR
• AMD64 Windows PGO NoGIL PR
• AMD64 Fedora Stable LTO PR
• AMD64 FreeBSD Refleaks PR
• AMD64 CentOS9 LTO PR
• AMD64 RHEL8 FIPS No Builtin Hashes PR
• AMD64 CentOS9 NoGIL Refleaks PR
• AMD64 Windows PGO PR
• AMD64 CentOS9 PR
• AMD64 Fedora Rawhide Clang Installed PR
• AMD64 Fedora Rawhide LTO + PGO PR
• AMD64 Android PR
• AMD64 RHEL8 Refleaks PR
• AMD64 Fedora Rawhide PR
• AMD64 Windows Server 2022 NoGIL PR
• AMD64 Debian root PR
• AMD64 RHEL8 LTO + PGO PR
• AMD64 FreeBSD PR
• AMD64 Arch Linux Asan Debug PR
• AMD64 Fedora Rawhide LTO PR
• AMD64 Fedora Rawhide NoGIL PR
• AMD64 RHEL8 PR
• AMD64 Fedora Rawhide Clang PR
• AMD64 CentOS9 LTO + PGO PR
• AMD64 Fedora Stable PR
• AMD64 Ubuntu Shared PR
• AMD64 Arch Linux VintageParser PR
• AMD64 Arch Linux Usan Function PR
• AMD64 Windows10 PR
• AMD64 Fedora Stable Clang PR
• AMD64 Fedora Rawhide Refleaks PR
• AMD64 Alpine Linux PR
• AMD64 CentOS9 FIPS No Builtin Hashes PR
• AMD64 Fedora Rawhide NoGIL refleaks PR
• AMD64 Arch Linux Usan PR
• AMD64 RHEL8 LTO PR
• AMD64 Arch Linux Valgrind PR
• AMD64 Windows11 Refleaks PR
• AMD64 Fedora Stable Clang Installed PR
• AMD64 Arch Linux Asan PR
• AMD64 Arch Linux TraceRefs PR
• AMD64 FreeBSD15 PR
• AMD64 CentOS9 Refleaks PR
• AMD64 Fedora Stable Refleaks PR
• AMD64 Windows11 Bigmem PR
• AMD64 Fedora Stable LTO + PGO PR
• AMD64 CentOS9 NoGIL PR
• AMD64 Windows11 Non-Debug PR
• AMD64 RHEL8 FIPS Only Blake2 Builtin Hash PR
• AMD64 CentOS9 FIPS Only Blake2 Builtin Hash PR
• AMD64 Ubuntu PR
• AMD64 Arch Linux Perf PR

[hugovk]

"AMD64 Debian root" passed here:

https://buildbot.python.org/#/builders/310/builds/1619

[hugovk]

And main is also back to green: #128693 (comment) 🚀