Unit tests: Use AST_TEST_DEFINE in conditional code only.

If AST_TEST_DEFINE is not conditional to TEST_FRAMEWORK it produces dead
code.  This places all existing unit tests into a conditional block if
they weren't already.

ASTERISK-26211 #close

Change-Id: I8ef83ee11cbc991b07b7a37ecb41433e8c734686

funcs/func_curl.c

@@ -856,6 +856,7 @@ static struct ast_custom_function acf_curlopt = {
 	.write = acf_curlopt_write,
 };
 
+#ifdef TEST_FRAMEWORK
 AST_TEST_DEFINE(vulnerable_url)
 {
 	const char *bad_urls [] = {
@@ -903,6 +904,7 @@ AST_TEST_DEFINE(vulnerable_url)
 
 	return res;
 }
+#endif
 
 static int unload_module(void)
 {