builtin-tag.c: remove cruft
builtin-tag.c: remove cruft

After changing builtin-tag.c to use strbuf in fd17f5b (Replace all
read_fd use with strbuf_read, and get rid of it.), the last condition
in do_sign() will always be false, as it's checked already right
above.  So let's remove the cruft.

Signed-off-by: Gerrit Pape <1b075ba43f4a5dfea44b6cd27eed9c666fd6f389@smarden.org>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git