[Patch, avr] Remove atxmega16x1 from known devices list

[Senthil Kumar Selvaraj]

The atxmega16x1 AVR variant doesn't exist, but the device name got
into the device list in gas/config/tc-avr.c. This patch removes the
non-existent device.

If ok, could someone apply please? I don't have commit access.

gas/ChangeLog

	* config/tc-avr.c: Remove atxmega16x1.

diff --git gas/config/tc-avr.c gas/config/tc-avr.c
index 332aa2d..6a672d8 100644
--- gas/config/tc-avr.c
+++ gas/config/tc-avr.c
@@ -261,7 +261,6 @@ static struct mcu_type_s mcu_types[] =
   {"atmega2564rfr2", AVR_ISA_AVR6, bfd_mach_avr6},
   {"atxmega16a4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega16d4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
-  {"atxmega16x1", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega32a4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega32d4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega32x1", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},