post push fix for bug#42438, did not compile on non debug,

due to ifdef of include file

sql/sql_table.cc:
  removed if defined since DEBUG_SYNC macro is defined in that
  include file.

sql/sql_table.cc

@@ -22,9 +22,7 @@
 #include "sp_head.h"
 #include "sql_trigger.h"
 #include "sql_show.h"
-#if defined(ENABLED_DEBUG_SYNC)
 #include "debug_sync.h"
-#endif
 
 #ifdef __WIN__
 #include <io.h>