Query cache: removed unused THD from few functions

A few query cache functions don't use THD pointer
so its removed from their interface.

sql/sql_cache.cc

@@ -2131,8 +2131,7 @@ def_week_frmt: %zu, in_trans: %d, autocommit: %d",
                      ("Handler require invalidation queries of %.*s %llu-%llu",
                       (int)qcache_se_key_len, qcache_se_key_name,
                       engine_data, table->engine_data()));
-          invalidate_table_internal(thd,
-                                    (uchar *) table->db(),
+          invalidate_table_internal((uchar *) table->db(),
                                     table->key_length());
         }
         else
@@ -2381,7 +2380,7 @@ void Query_cache::invalidate(THD *thd, const char *db)
           if (strcmp(table->db(),db) == 0)
           {
             Query_cache_block_table *list_root= table_block->table(0);
-            invalidate_query_block_list(thd,list_root);
+            invalidate_query_block_list(list_root);
           }
 
           table_block= next;
@@ -3320,7 +3319,7 @@ void Query_cache::invalidate_table(THD *thd, uchar * key, size_t key_length)
   DEBUG_SYNC(thd, "wait_in_query_cache_invalidate2");
 
   if (query_cache_size > 0)
-    invalidate_table_internal(thd, key, key_length);
+    invalidate_table_internal(key, key_length);
 
   unlock();
 }
@@ -3335,14 +3334,14 @@ void Query_cache::invalidate_table(THD *thd, uchar * key, size_t key_length)
 */
 
 void
-Query_cache::invalidate_table_internal(THD *thd, uchar *key, size_t key_length)
+Query_cache::invalidate_table_internal(uchar *key, size_t key_length)
 {
   Query_cache_block *table_block=
     (Query_cache_block*)my_hash_search(&tables, key, key_length);
   if (table_block)
   {
     Query_cache_block_table *list_root= table_block->table(0);
-    invalidate_query_block_list(thd, list_root);
+    invalidate_query_block_list(list_root);
   }
 }
 
@@ -3359,8 +3358,7 @@ Query_cache::invalidate_table_internal(THD *thd, uchar *key, size_t key_length)
 */
 
 void
-Query_cache::invalidate_query_block_list(THD *thd,
-                                         Query_cache_block_table *list_root)
+Query_cache::invalidate_query_block_list(Query_cache_block_table *list_root)
 {
   while (list_root->next != list_root)
   {
@@ -3543,7 +3541,7 @@ Query_cache::insert_table(THD *thd, size_t key_len, const char *key,
     */
     {
       Query_cache_block_table *list_root= table_block->table(0);
-      invalidate_query_block_list(thd, list_root);
+      invalidate_query_block_list(list_root);
     }
 
     table_block= 0;

sql/sql_cache.h

@@ -319,7 +319,7 @@ class Query_cache
   Cache_staus m_cache_status;
 
   void free_query_internal(Query_cache_block *point);
-  void invalidate_table_internal(THD *thd, uchar *key, size_t key_length);
+  void invalidate_table_internal(uchar *key, size_t key_length);
 
 protected:
   /*
@@ -375,8 +375,7 @@ class Query_cache
   void invalidate_table(THD *thd, TABLE *table);
   void invalidate_table(THD *thd, uchar *key, size_t  key_length);
   void invalidate_table(THD *thd, Query_cache_block *table_block);
-  void invalidate_query_block_list(THD *thd, 
-                                   Query_cache_block_table *list_root);
+  void invalidate_query_block_list(Query_cache_block_table *list_root);
 
   TABLE_COUNTER_TYPE
     register_tables_from_list(THD *thd, TABLE_LIST *tables_used,