rm unused patch

Change-Id: Ie33bc6a6ef5c1a638a138e4989bd885b6b678ab4

external/liblangtag/liblangtag-0.5.1-redefinition-of-typedef.patch

-diff -ru langtag.orig/liblangtag/lt-trie.c langtag/liblangtag/lt-trie.c
---- UnpackedTarball/langtag.orig/liblangtag/lt-trie.c	2013-04-30 04:37:30.000000000 +0200
-+++ UnpackedTarball/langtag/liblangtag/lt-trie.c	2013-04-30 14:57:50.777932196 +0200
-@@ -33,11 +33,6 @@
- 	lt_iter_tmpl_t  parent;
- 	lt_trie_node_t *root;
- };
--typedef struct _lt_trie_iter_t {
--	lt_iter_t    parent;
--	lt_list_t   *stack;
--	lt_string_t *pos_str;
--} lt_trie_iter_t;
- 
- /*< private >*/
- static lt_trie_node_t *
-diff -ru langtag.orig/liblangtag/lt-trie.h langtag/liblangtag/lt-trie.h
---- UnpackedTarball/langtag.orig/liblangtag/lt-trie.h	2013-04-30 04:44:36.000000000 +0200
-+++ UnpackedTarball/langtag/liblangtag/lt-trie.h	2013-04-30 14:57:57.746969291 +0200
-@@ -21,7 +21,11 @@
- LT_BEGIN_DECLS
- 
- typedef struct _lt_trie_t	lt_trie_t;
--typedef struct _lt_trie_iter_t  lt_trie_iter_t;
-+typedef struct _lt_trie_iter_t {
-+	lt_iter_t    parent;
-+	lt_list_t   *stack;
-+	lt_string_t *pos_str;
-+} lt_trie_iter_t;
- 
- lt_trie_t      *lt_trie_new        (void);
- lt_trie_t      *lt_trie_ref        (lt_trie_t         *trie);