xserver: remove patch for aarch64

xorg-server-1.15.0.tar.gz already has full support of aarch64.
It was added with this commit http://patchwork.freedesktop.org/patch/14361/

Even though the patch in question doesn't break patching or building of xserver
it duplicates aarch64 entries in "include/servermd.h".

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/x11r7/xserver_xorg-server/xserver_xorg-server-01-aarch64-support.patch

@@ -1,23 +0,0 @@
-Add necessary definitions for AArch64
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-
-Index: xserver_xorg-server-1.9.4/include/servermd.h
-===================================================================
---- xserver_xorg-server-1.9.4.orig/include/servermd.h	2009-11-04 20:31:46.000000000 +0100
-+++ xserver_xorg-server-1.9.4/include/servermd.h	2012-12-28 18:16:55.000000000 +0100
-@@ -68,6 +68,14 @@
-  * GLYPHPADBYTES is used.
-  */
- 
-+#ifdef __aarch64__
-+
-+# define IMAGE_BYTE_ORDER	LSBFirst
-+# define BITMAP_BIT_ORDER       LSBFirst
-+# define GLYPHPADBYTES		4
-+
-+#endif
-+
- #ifdef __avr32__
- 
- #define IMAGE_BYTE_ORDER        MSBFirst