xfree86: unexport xf86PlatformMatchDriver()

Not used by any drivers, so no need to keep it exported.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1738>
(cherry picked from commit 0b123a0413)

hw/xfree86/common/xf86MatchDrivers.h

@@ -36,5 +36,7 @@ typedef struct _XF86MatchedDrivers {
  */
 void xf86AddMatchedDriver(XF86MatchedDrivers *, const char *);
 
+void xf86PlatformMatchDriver(XF86MatchedDrivers *);
+
 #endif                          /* _xf86_match_drivers_h */
 

hw/xfree86/common/xf86platformBus.h

@@ -25,7 +25,6 @@
 #define XF86_PLATFORM_BUS_H
 
 #include "hotplug.h"
-#include "xf86MatchDrivers.h"
 
 struct xf86_platform_device {
     struct OdevAttributes *attribs;
@@ -156,9 +155,6 @@ _xf86_get_platform_device_int_attrib(struct xf86_platform_device *device, int at
 extern _X_EXPORT Bool
 xf86PlatformDeviceCheckBusID(struct xf86_platform_device *device, const char *busid);
 
-extern _X_EXPORT void
-xf86PlatformMatchDriver(XF86MatchedDrivers *);
-
 extern void xf86platformVTProbe(void);
 extern void xf86platformPrimary(void);