diff --git a/pdlib.cc b/pdlib.cc
index a1d9eb6..a53ae4a 100644
--- a/pdlib.cc
+++ b/pdlib.cc
@@ -57,34 +57,6 @@ PHP_INI_END()
 */
 /* }}} */
 
-/* Remove the following function when you have successfully modified config.m4
-   so that your module can be compiled into PHP, it exists only for testing
-   purposes. */
-
-/* Every user-visible function in PHP should document itself in the source */
-/* {{{ proto string confirm_pdlib_compiled(string arg)
-   Return a string to confirm that the module is compiled in */
-PHP_FUNCTION(confirm_pdlib_compiled)
-{
-	char *arg = NULL;
-	size_t arg_len;
-	zend_string *strg;
-
-	if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &arg, &arg_len) == FAILURE) {
-		return;
-	}
-
-	strg = strpprintf(0, "Congratulations! You have successfully modified ext/%.78s/config.m4. Module %.78s is now compiled into PHP.", "pdlib", arg);
-
-	RETURN_STR(strg);
-}
-/* }}} */
-/* The previous line is meant for vim and emacs, so it can correctly fold and
-   unfold functions in source code. See the corresponding marks just before
-   function definition, where the functions purpose is also documented. Please
-   follow this convention for the convenience of others editing your code.
-*/
-
 
 /* {{{ php_pdlib_init_globals
  */
@@ -257,7 +229,6 @@ PHP_MINFO_FUNCTION(pdlib)
  * Every user visible function must have an entry in pdlib_functions[].
  */
 const zend_function_entry pdlib_functions[] = {
-	PHP_FE(confirm_pdlib_compiled,	NULL)
 	PHP_FE(dlib_chinese_whispers, dlib_chinese_whispers_arginfo)
 	PHP_FE(dlib_face_detection, dlib_face_detection_arginfo)
 	PHP_FE(dlib_face_landmark_detection, dlib_face_landmark_detection_arginfo)