[BUG] KeyDB -lcrypto linkage with BUILD_TLS=no

[jrynkiew]

Describe the bug

KeyDB compilation with flag make BUILD_TLS=no still requires -lcrypto linkage

To reproduce

make -j`nproc` CFLAGS="-DUSE_PROCESSOR_CLOCK" BUILD_TLS=no MALLOC=jemalloc USE_SYSTEMD=no

Expected behavior

should not attempt to link against crypto libraries if TLS is disabled