[binutils-gdb] Remove xml files from gdbserver

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT b319b0984b505e9a5e653c3da8ae7d5af76c8f28 ***

Author: Alan Hayward <alan.hayward@arm.com>
Branch: master
Commit: b319b0984b505e9a5e653c3da8ae7d5af76c8f28

Remove xml files from gdbserver

For ports which use new target descriptions, remove
the xml files from being built into gdbserver.

gdbserver/
	* configure.srv (aarch64*-*-linux*): Don't include xml.
	(i[34567]86-*-cygwin*): Likewise.
	(i[34567]86-*-linux*): Likewise.
	(i[34567]86-*-lynxos*): Likewise.
	(i[34567]86-*-mingw32ce*): Likewise.
	(i[34567]86-*-mingw*): Likewise.
	(i[34567]86-*-nto*): Likewise.
	(tic6x-*-uclinux): Likewise.
	(x86_64-*-linux*): Likewise.
	(x86_64-*-mingw*): Likewise.
	(x86_64-*-cygwin*): Likewise.