t1505: remove debugging cruft

Remove a call to git-log that I introduced for debugging and that
accidentally made it into d18ba22 (sha1_name: support @{-N} syntax in
get_sha1(), 2009-01-17).

Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/t1505-rev-parse-last.sh

@@ -32,8 +32,6 @@ test_expect_success 'setup' '
 #
 # and 'side' should be the last branch
 
-git log --graph --all --pretty=oneline --decorate
-
 test_rev_equivalent () {
 
 	git rev-parse "$1" > expect &&