Fix CI - unused vars #2267

Job	Run time
address-sanitizer	30m 27s
arm64-cross-compilation	5m 5s
arm64-cross-compilation-mbedtls	3m 2s
arm64-cross-compilation-mbedtls-static	2m 10s
clang-format-check	16s
linux-aarch64-cross-compilation	4m 47s
linux-gcc-4_4	19m 31s
mac-os-build-clang	18m 0s
mac-os-build-gcc	16m 45s
mac-os-m1-build-clang	29m 3s
mbedtls-mac-os-build-clang	28m 50s
mbedtls-ubuntu-clang	27m 40s
mbedtls-ubuntu-gcc	27m 19s
mbedtls-ubuntu-gcc-11	26m 3s
mbedtls-ubuntu-gcc-4_4-build	2m 30s
mbedtls-ubuntu-gcc-static	2m 23s
sample-check	4m 47s
sample-check-no-data-channel	4m 47s
static-build-mac	38m 46s
static-build-linux	17m 3s
thread-sanitizer	29m 16s
ubuntu-os-build	28m 20s
undefined-behavior-sanitizer	30m 11s
windows-msvc-openssl	28m 41s
arm32-cross-compilation	4m 49s
arm32-cross-compilation-mbedtls	2m 33s
arm32-cross-compilation-mbedtls-static	2m 15s
	7h 15m 19s

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