Remove unnecessary -O2 compilation flag

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

tests/scripts/components-configuration-crypto.sh

diff --git a/tests/scripts/components-configuration-crypto.sh b/tests/scripts/components-configuration-crypto.sh
index 0ccb2ce..de8ab2d 100644
--- a/tests/scripts/components-configuration-crypto.sh
+++ b/tests/scripts/components-configuration-crypto.sh
@@ -2683,7 +2683,7 @@
     msg "build: full + test drivers dispatching to builtins"
     scripts/config.py full
     loc_cflags="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_CONFIG_ADJUST_TEST_ACCELERATORS"
-    loc_cflags="${loc_cflags} -I../tests/include -O2"
+    loc_cflags="${loc_cflags} -I../tests/include"
 
     make CC=$ASAN_CC CFLAGS="${loc_cflags}" LDFLAGS="$ASAN_CFLAGS"