gH-80788: remove old weakset workaround for thread safety (#123388) #1

Job	Run time
Change detection / Compute changed files	8s
Address sanitizer	12m 8s
Ubuntu SSL tests with OpenSSL (1.1.1w)	3m 1s
Ubuntu SSL tests with OpenSSL (3.0.13)	3m 50s
Ubuntu SSL tests with OpenSSL (3.1.5)	3m 54s
Windows MSI${{ '' }}	0s
Check if generated files are up to date	2m 49s
Ubuntu SSL tests with OpenSSL (3.2.1)	4m 18s
CIFuzz	0s
Docs	0s
Hypothesis tests on Ubuntu	7m 12s
Thread sanitizer / Thread sanitizer	5m 50s
Thread sanitizer (free-threading) / Thread sanitizer	8m 21s
WASI / build and test	7m 16s
macOS / build and test (macos-13)	12m 3s
macOS / build and test (macos-14)	9m 29s
macOS (free-threading) / build and test (macos-14)	10m 37s
Ubuntu / build and test	9m 3s
Ubuntu (free-threading) / build and test	12m 7s
Windows / build (arm64)	2m 13s
Windows (free-threading) / build (arm64)	2m 48s
Windows / build and test (Win32)	15m 51s
Windows (free-threading) / build and test (Win32)	23m 31s
Windows / build and test (x64)	15m 22s
Windows (free-threading) / build and test (x64)	22m 29s
All required checks pass	4s
	3h 14m 24s

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