Merge single-use function _glfwFreeMonitors

All other uses were elminiated by _glfwInputMonitor.

src/init.c

@@ -160,14 +160,14 @@ GLFWAPI void glfwTerminate(void)
         _GLFWmonitor* monitor = _glfw.monitors[i];
         if (monitor->originalRamp.size)
             _glfwPlatformSetGammaRamp(monitor, &monitor->originalRamp);
+        _glfwFreeMonitor(monitor);
     }
 
-    _glfwTerminateVulkan();
-
-    _glfwFreeMonitors(_glfw.monitors, _glfw.monitorCount);
+    free(_glfw.monitors);
     _glfw.monitors = NULL;
     _glfw.monitorCount = 0;
 
+    _glfwTerminateVulkan();
     _glfwPlatformTerminate();
 
     memset(&_glfw, 0, sizeof(_glfw));