options: Remove 'gcc/c-family/c.opt:Warray-bounds' option definition record

options: Remove 'gcc/c-family/c.opt:Warray-bounds' option definition record

A one-argument form of the 'LangEnabledBy' option property isn't defined,
and effectively appears to be a no-op.  Removing that one, the
'gcc/c-family/c.opt:Warray-bounds' option definition record becomes empty,
and doesn't add anything over 'gcc/common.opt:Warray-bounds', and may thus
be removed entirely.  This only changes 'build-gcc/gcc/optionlist'
accordingly, but no other generated files.

Clean-up after r262912/commit 0d7f90652080c42cddca6f9b68f6895218c70880
"PR middle-end/82063 - issues with arguments enabled by -Wall".

	gcc/c-family/
	* c.opt (Warray-bounds): Remove.