Remove unused variables

ext/mbstring/mbstring.c

@@ -1147,7 +1147,7 @@ static char *php_mb_rfc1867_getword_conf(const zend_encoding *encoding, char *st
 
 static char *php_mb_rfc1867_basename(const zend_encoding *encoding, char *filename TSRMLS_DC) /* {{{ */
 {
-	char *s, *s2, *tmp;
+	char *s, *s2;
 	const size_t filename_len = strlen(filename);
 
 	/* The \ check should technically be needed for win32 systems only where

ext/xsl/xsltprocessor.c

@@ -934,7 +934,6 @@ PHP_FUNCTION(xsl_xsltprocessor_get_security_prefs)
 {
 	zval *id;
 	xsl_object *intern;
-	long securityPrefs;
 
 	DOM_GET_THIS(id);
 	if (zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS() TSRMLS_CC, "") == SUCCESS) {