Remove pointless warning

Any attacker who managed to make an evil commit that changed something in the
contrib/verify-commits/ directory could just as easily remove the warning
and/or modify it to not display the evil commits; telling the user to check
those commits specifically misleads them into checking just those commits
rather than the script itself.

contrib/verify-commits/verify-commits.sh

@@ -5,9 +5,6 @@
 DIR=$(dirname "$0")
 [ "/${DIR#/}" != "$DIR" ] && DIR=$(dirname "$(pwd)/$0")
 
-echo "Please verify all commits in the following list are not evil:"
-git log "$DIR"
-
 VERIFIED_ROOT=$(cat "${DIR}/trusted-git-root")
 REVSIG_ALLOWED=$(cat "${DIR}/allow-revsig-commits")