input: bump to ints for deviceids - XI2 requires 16-bit deviceids.

Note: ABI break, but ABI_XINPUT_VERSION has NOT been bumped. Recompile input
drivers.

Revert "Xi: return BadImplementation for deviceids 256 and above"
This reverts commit 2b459f44f3.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

Xi/xiwarppointer.c

@@ -76,12 +76,6 @@ ProcXIWarpPointer(ClientPtr client)
     REQUEST(xXIWarpPointerReq);
     REQUEST_SIZE_MATCH(xXIWarpPointerReq);
 
-    if (stuff->deviceid > 0xFF) /* FIXME */
-    {
-        client->errorValue = stuff->deviceid;
-        return BadImplementation;
-    }
-
     /* FIXME: panoramix stuff is missing, look at ProcWarpPointer */
 
     rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixWriteAccess);