options: Remove 'gcc/c-family/c.opt:Wuse-after-free' option definition record

options: Remove 'gcc/c-family/c.opt:Wuse-after-free' 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:Wuse-after-free' option definition record becomes
empty, and doesn't add anything over 'gcc/common.opt:Wuse-after-free', and
may thus be removed entirely.  This only changes 'build-gcc/gcc/optionlist'
accordingly, but no other generated files.

Clean-up after recent commit 671a283636de75f7ed638ee6b01ed2d44361b8b6
"Add -Wuse-after-free [PR80532]".

	gcc/c-family/
	* c.opt (Wuse-after-free): Remove.