[PATCH v3 3/4] git-bisect: remove unused SHA-1 $x40 shell variable

This variable was last used in code removed in
06f5608c14 (bisect--helper: `bisect_start` shell function partially in
C, 2019-01-02).

Signed-off-by: Ævar Arnfjörð Bjarmason <redacted>
---
 git-bisect.sh | 2 --
 1 file changed, 2 deletions(-)

diff --git a/git-bisect.sh b/git-bisect.sh
index 6a7afaea8da..b59f3aaad43 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh

@@ -34,8 +34,6 @@ Please use "git help bisect" to get the full man page.'
 OPTIONS_SPEC=
 . git-sh-setup
 
-_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
-_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
 TERM_BAD=bad
 TERM_GOOD=good
 

-- 
2.33.0.984.gea2c3555113