git: Add git-bug edit function gbe

Can edit either the description of a bug (`gbe <bug-id>`) or a specific
comment (`gbe <comment-id>`).

vcs/git/config/sh/alias.d/git.sh

@@ -97,29 +97,4 @@ else
     alias gsta='git stash save'
 fi
 
-if exist git-bug; then
-    # POSIX-compliant version of . <(cmd) substitution
-    # shellcheck source=/dev/null # but shellcheck can't access
-    git-bug completion zsh | . /dev/fd/0
-
-    alias gbt='git-bug termui'
-    alias gb="git-bug bug"
-    alias gbw="git-bug bug show"
-
-    alias gbn='git-bug bug new'
-    alias gbm='git-bug bug comment new'
-    alias gbte='git-bug bug title edit'
-
-    # TODO: Implement toggle function
-    # grab current status and then open or close accordingly
-    alias gbo='git-bug bug status close'
-
-    alias gbp='git-bug push'
-    alias gbl='git-bug pull'
-
-    alias gbu='git-bug user' # list users
-    # show primary user info
-    alias gbU='git-bug user user "$(git-bug user | cut -d" " -f1 | head -n1)"'
-fi
-
 unset -v git_version