Remove not-needed compiler flags

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index 1957599..00f7225 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -3515,18 +3515,18 @@
 
     # test asm
     msg "AES tests, MBEDTLS_AESNI_HAVE_CODE=1 (asm)"
-    make test CC=gcc CFLAGS='-O2 -Werror -Wall -Wextra -DMBEDTLS_AESNI_HAVE_CODE=1'
+    make test CC=gcc CFLAGS='-O2 -Werror -DMBEDTLS_AESNI_HAVE_CODE=1'
 
     # test intrinsics
     msg "AES tests, MBEDTLS_AESNI_HAVE_CODE=2 (intrinsics)"
     make clean
-    make test CC=gcc CFLAGS='-O2 -Werror -Wall -Wextra -mpclmul -msse2 -maes -DMBEDTLS_AESNI_HAVE_CODE=2'
+    make test CC=gcc CFLAGS='-O2 -Werror -mpclmul -msse2 -maes -DMBEDTLS_AESNI_HAVE_CODE=2'
 
     # test plain C
     scripts/config.py unset MBEDTLS_AESNI_C
     msg "AES tests, plain C"
     make clean
-    make test CC=gcc CFLAGS='-O2 -Werror -Wall -Wextra'
+    make test CC=gcc CFLAGS='-O2 -Werror'
 }
 
 component_test_aes_only_128_bit_keys () {