Remove useless include and defines.

diff --git a/php_imlib.c b/php_imlib.c
index 2e387a1..8704844 100644
--- a/php_imlib.c
+++ b/php_imlib.c
@@ -18,7 +18,6 @@
  */

 #include "php.h"
-#include "php_ini.h"
 #include "php_imlib.h"
 #include "php_globals.h"
 #include "php_open_temporary_file.h"
diff --git a/php_imlib.h b/php_imlib.h
index 7df29c5..30c7e58 100644
--- a/php_imlib.h
+++ b/php_imlib.h
@@ -158,7 +158,6 @@ typedef PHP_Imlib_Color_Modifier_struct *PHP_Imlib_Color_Modifier;
 #if PHP_VERSION_ID >= 70000
   typedef zval imlib_zval;
   typedef zend_resource imlib_resource;
-# define IMLIB_TO_ZVAL(v) v
 # define Z_LVAL_PP(v) Z_LVAL_P(v)
 # define Z_DVAL_PP(v) Z_DVAL_P(v)
 # define STR_VAL(k) (k)->val
@@ -173,7 +172,6 @@ typedef PHP_Imlib_Color_Modifier_struct *PHP_Imlib_Color_Modifier;
   typedef zval* imlib_zval;
   typedef imlib_zval imlib_resource;
   typedef char zend_string;
-# define IMLIB_TO_ZVAL(v) *v
 # define STR_VAL(k) (k)
 # define IMLIB_DELETE_RESOURCE(v) zend_list_delete(Z_LVAL_PP(v))
 # define IMLIB_RETURN_STRING(v) RETURN_STRING(v, 1)