For tests, rename TEST_CALLOC_OR_FAIL() to just TEST_CALLOC()

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index e12873b..39c9dde 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -1426,7 +1426,7 @@
     rnd_info.fallback_f_rng = NULL;
     rnd_info.fallback_p_rng = NULL;
 
-    TEST_CALLOC_OR_FAIL(actual, expected->len);
+    TEST_CALLOC(actual, expected->len);
 
     ret = mbedtls_ecp_gen_privkey_mx(bits, &d,
                                      mbedtls_test_rnd_buffer_rand, &rnd_info);