Post-merge fix for bug 41728: revert fix that was pushed in mistake to 5.1 and up.

include/mysql.h

@@ -557,16 +557,6 @@ unsigned long STDCALL mysql_real_escape_string(MYSQL *mysql,
 					       char *to,const char *from,
 					       unsigned long length);
 void		STDCALL mysql_debug(const char *debug);
-char *		STDCALL mysql_odbc_escape_string(MYSQL *mysql,
-						 char *to,
-						 unsigned long to_length,
-						 const char *from,
-						 unsigned long from_length,
-						 void *param,
-						 char *
-						 (*extend_buffer)
-						 (void *, char *to,
-						  unsigned long *length));
 void 		STDCALL myodbc_remove_escape(MYSQL *mysql,char *name);
 unsigned int	STDCALL mysql_thread_safe(void);
 my_bool		STDCALL mysql_embedded(void);

include/mysql.h.pp

@@ -518,16 +518,6 @@ unsigned long mysql_real_escape_string(MYSQL *mysql,
             char *to,const char *from,
             unsigned long length);
 void mysql_debug(const char *debug);
-char * mysql_odbc_escape_string(MYSQL *mysql,
-       char *to,
-       unsigned long to_length,
-       const char *from,
-       unsigned long from_length,
-       void *param,
-       char *
-       (*extend_buffer)
-       (void *, char *to,
-        unsigned long *length));
 void myodbc_remove_escape(MYSQL *mysql,char *name);
 unsigned int mysql_thread_safe(void);
 my_bool mysql_embedded(void);

libmysql/libmysql.c

@@ -1629,20 +1629,6 @@ mysql_real_escape_string(MYSQL *mysql, char *to,const char *from,
   return (uint) escape_string_for_mysql(mysql->charset, to, 0, from, length);
 }
 
-
-char * STDCALL
-mysql_odbc_escape_string(MYSQL *mysql __attribute__((unused)),
-                         char *to __attribute__((unused)),
-                         ulong to_length __attribute__((unused)),
-                         const char *from __attribute__((unused)),
-                         ulong from_length __attribute__((unused)),
-                         void *param __attribute__((unused)),
-                         char * (*extend_buffer)(void *, char *, ulong *)
-                         __attribute__((unused)))
-{
-  return NULL;
-}
-
 void STDCALL
 myodbc_remove_escape(MYSQL *mysql,char *name)
 {

libmysql/libmysql.def

@@ -78,7 +78,6 @@ EXPORTS
 	mysql_next_result
 	mysql_num_fields
 	mysql_num_rows
-	mysql_odbc_escape_string
 	mysql_options
 	mysql_stmt_param_count
 	mysql_stmt_param_metadata

libmysqld/libmysqld.def

@@ -50,7 +50,6 @@ EXPORTS
 	mysql_next_result
 	mysql_num_fields
 	mysql_num_rows
-	mysql_odbc_escape_string
 	mysql_options
 	mysql_ping
 	mysql_query