diff --git a/src/x11_time.c b/src/x11_time.c
deleted file mode 100644
index da8350f5..00000000
--- a/src/x11_time.c
+++ /dev/null
@@ -1,98 +0,0 @@
-//========================================================================
-// GLFW 3.1 X11 - www.glfw.org
-//------------------------------------------------------------------------
-// Copyright (c) 2002-2006 Marcus Geelnard
-// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
-//
-// This software is provided 'as-is', without any express or implied
-// warranty. In no event will the authors be held liable for any damages
-// arising from the use of this software.
-//
-// Permission is granted to anyone to use this software for any purpose,
-// including commercial applications, and to alter it and redistribute it
-// freely, subject to the following restrictions:
-//
-// 1. The origin of this software must not be misrepresented; you must not
-//    claim that you wrote the original software. If you use this software
-//    in a product, an acknowledgment in the product documentation would
-//    be appreciated but is not required.
-//
-// 2. Altered source versions must be plainly marked as such, and must not
-//    be misrepresented as being the original software.
-//
-// 3. This notice may not be removed or altered from any source
-//    distribution.
-//
-//========================================================================
-
-#include "internal.h"
-
-#include <sys/time.h>
-#include <time.h>
-
-
-// Return raw time
-//
-static uint64_t getRawTime(void)
-{
-#if defined(CLOCK_MONOTONIC)
-    if (_glfw.x11.timer.monotonic)
-    {
-        struct timespec ts;
-
-        clock_gettime(CLOCK_MONOTONIC, &ts);
-        return (uint64_t) ts.tv_sec * (uint64_t) 1000000000 + (uint64_t) ts.tv_nsec;
-    }
-    else
-#endif
-    {
-        struct timeval tv;
-
-        gettimeofday(&tv, NULL);
-        return (uint64_t) tv.tv_sec * (uint64_t) 1000000 + (uint64_t) tv.tv_usec;
-    }
-}
-
-
-//////////////////////////////////////////////////////////////////////////
-//////                       GLFW internal API                      //////
-//////////////////////////////////////////////////////////////////////////
-
-// Initialise timer
-//
-void _glfwInitTimer(void)
-{
-#if defined(CLOCK_MONOTONIC)
-    struct timespec ts;
-
-    if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
-    {
-        _glfw.x11.timer.monotonic = GL_TRUE;
-        _glfw.x11.timer.resolution = 1e-9;
-    }
-    else
-#endif
-    {
-        _glfw.x11.timer.resolution = 1e-6;
-    }
-
-    _glfw.x11.timer.base = getRawTime();
-}
-
-
-//////////////////////////////////////////////////////////////////////////
-//////                       GLFW platform API                      //////
-//////////////////////////////////////////////////////////////////////////
-
-double _glfwPlatformGetTime(void)
-{
-    return (double) (getRawTime() - _glfw.x11.timer.base) *
-        _glfw.x11.timer.resolution;
-}
-
-void _glfwPlatformSetTime(double time)
-{
-    _glfw.x11.timer.base = getRawTime() -
-        (uint64_t) (time / _glfw.x11.timer.resolution);
-}
-