Removing unused structures

Author: sergeyklay

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 - Fixed compiler warnings on build lemon
+- Removing unused structures
 
 ## 1.0.0 - 2017-03-26
 ### Added

parser/xx.h

@@ -24,11 +24,6 @@ typedef struct _xx_token_names {
 	char *name;
 } xx_token_names;
 
-typedef struct _xx_memory_manager {
-	zval ***slots;
-	int number;
-} xx_memory_manager;
-
 /* Active token state */
 typedef struct _xx_scanner_state {
 	int active_token;