Delete unused sym_clear_flag function. (#115744) #77

Job	Run time
Check for source changes	7s
Address sanitizer	12m 20s
Ubuntu SSL tests with OpenSSL (1.1.1w)	1m 46s
Check if generated files are up to date	2m 14s
Ubuntu SSL tests with OpenSSL (3.0.13)	2m 4s
Docs	0s
CIFuzz	0s
Ubuntu SSL tests with OpenSSL (3.1.5)	1m 48s
Ubuntu SSL tests with OpenSSL (3.2.1)	2m 7s
Hypothesis tests on Ubuntu	5m 13s
macOS / build and test (macos-14)	6m 39s
macOS / build and test (macos-13)	8m 26s
macOS (free-threading) / build and test (macos-14)	7m 48s
macOS (free-threading) / build and test (macos-13)	12m 48s
Ubuntu / build and test	9m 11s
Ubuntu (free-threading) / build and test	10m 25s
Windows / build and test (x64)	13m 49s
Windows / build (arm64)	2m 44s
Windows / build and test (x86)	13m 35s
Windows (free-threading) / build and test (x64)	22m 39s
Windows (free-threading) / build and test (x86)	20m 47s
Windows (free-threading) / build (arm64)	3m 21s
All required checks pass	1s
	2h 39m 52s

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