Remove dead code which contains bad gettext block

Found this dead code when I examine gettext messages in shell scripts start with dash ('-' or '--'). An error will be raised for this case, like: $ gettext "-d option is no longer supported. Do not use." gettext: missing arguments Indead, this code has been left as dead for a long time, as Jonathan points out: The git am -d/--dotest option has errored out with a message since e72c7406 (am: remove support for -d .dotest, 2008-03-04). The error message about lack of support was eliminated along with other cleanups (probably by mistake) a year later by removing the option from the option table in 98ef23b3 (git-am: minor cleanups, 2009-01-28). But the code to handle -d and --dotest stayed around even though ever since then it could not be tripped. Remove this dead code. Signed-off-by: Jiang Xin <worldhello.net@gmail.com> Reviewed-by: Stefano Lattarini <stefano.lattarini@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>