* config/avr/avr-mcus.def: Remove atxmega16x1.
	* config/avr/avr-tables.opt: Regenerate.
	* config/avr/t-multilib: Regenerate.
	* doc/avr-mmcu.texi: Regenerate.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208281 138bc75d-0d04-0410-961f-82ee72b054a4