Cleanup: Simplify sync_array_object_signalled()

storage/innobase/include/sync0arr.h

 /*****************************************************************************
 
 Copyright (c) 1995, 2016, Oracle and/or its affiliates. All Rights Reserved.
-Copyright (c) 2015, 2018, MariaDB Corporation.
+Copyright (c) 2015, 2020, MariaDB Corporation.
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free Software
@@ -79,10 +79,9 @@ sync_array_free_cell(
 	sync_array_t*	arr,	/*!< in: wait array */
 	sync_cell_t*&	cell);	/*!< in: the reserved cell */
 
-/**********************************************************************//**
-Note that one of the wait objects was signalled. */
-void
-sync_array_object_signalled();
+/** count of how many times an object has been signalled */
+extern ulint sg_count;
+#define sync_array_object_signalled() ++sg_count
 
 /**********************************************************************//**
 Prints warnings of long semaphore waits to stderr.

storage/innobase/sync/sync0arr.cc

@@ -169,7 +169,7 @@ mutexes and read-write locks */
 sync_array_t**	sync_wait_array;
 
 /** count of how many times an object has been signalled */
-static ulint			sg_count;
+ulint sg_count;
 
 #define sync_array_exit(a)	mutex_exit(&(a)->mutex)
 #define sync_array_enter(a)	mutex_enter(&(a)->mutex)
@@ -859,15 +859,6 @@ sync_array_detect_deadlock(
 }
 #endif /* UNIV_DEBUG */
 
-/**********************************************************************//**
-Increments the signalled count. */
-void
-sync_array_object_signalled()
-/*=========================*/
-{
-	++sg_count;
-}
-
 /**********************************************************************//**
 Prints warnings of long semaphore waits to stderr.
 @return TRUE if fatal semaphore wait threshold was exceeded */