Remove unused symbol

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/tests/scripts/depends.py b/tests/scripts/depends.py
index 8db4ec9..ac3ba9c 100755
--- a/tests/scripts/depends.py
+++ b/tests/scripts/depends.py
@@ -284,7 +284,6 @@
     'PSA_WANT_ECC_SECP_R1_256': ['MBEDTLS_ECJPAKE_C',
                                  'MBEDTLS_ECP_DP_SECP256R1_ENABLED'],
     'PSA_WANT_ECC_SECP_R1_384': ['MBEDTLS_ECP_DP_SECP384R1_ENABLED'],
-    'PSA_WANT_ECC_SECP_R1_512': ['MBEDTLS_ECP_DP_SECP512R1_ENABLED'],
     'PSA_WANT_ECC_SECP_R1_521': ['MBEDTLS_ECP_DP_SECP521R1_ENABLED'],
     'PSA_WANT_ECC_SECP_K1_192': ['MBEDTLS_ECP_DP_SECP192K1_ENABLED'],
     'PSA_WANT_ECC_SECP_K1_256': ['MBEDTLS_ECP_DP_SECP256K1_ENABLED'],