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diff --git a/storage/innobase/include/ut0timer.h b/storage/innobase/include/ut0timer.h
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-/*****************************************************************************
-
-Copyright (c) 2013, 2014, Facebook, Inc. All Rights Reserved.
-Copyright (c) 2014, 2018, 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
-Foundation; version 2 of the License.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with
-this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
-
-*****************************************************************************/
-
-/********************************************************************//**
-@file include/ut0timer.h
-Timer routines
-
-Created 30/07/2014 Jan Lindström jan.lindstrom@skysql.com
-modified from https://github.com/facebook/mysql-5.6/commit/c75a413edeb96eb99bf11d7269bdfea06f96d6b6
-*************************************************************************/
-#ifndef ut0timer_h
-#define ut0timer_h
-
-#include "univ.i"
-
-/* Current timer stats */
-extern struct my_timer_unit_info ut_timer;
-
-/**************************************************************//**
-Function pointer to point selected timer function.
-@return timer current value */
-extern ulonglong (*ut_timer_now)(void);
-
-/**************************************************************//**
-Sets up the data required for use of my_timer_* functions.
-Selects the best timer by high frequency, and tight resolution.
-Points my_timer_now() to the selected timer function.
-Initializes my_timer struct to contain the info for selected timer.*/
-UNIV_INTERN
-void ut_init_timer(void);
-
-/**************************************************************//**
-Convert native timer units in a ulonglong into microseconds in a double
-@return time in microseconds */
-UNIV_INLINE
-double
-ut_timer_to_microseconds(
-/*=====================*/
- ulonglong when); /*!< in: time where to calculate */
-/**************************************************************//**
-Convert microseconds in a double to native timer units in a ulonglong
-@return time in microseconds */
-UNIV_INLINE
-ulonglong
-ut_microseconds_to_timer(
-/*=====================*/
- ulonglong when); /*!< in: time where to calculate */
-
-#include "ut0timer.ic"
-
-#endif