Meta/Doit: retire unused script

These days, Meta/Dothem is much more intelligent, knowing when not to run
tests and such.  It hasn't been used for two years.

Doit

@@ -1,105 +0,0 @@
-#!/bin/sh
-
-: ${J=-j4}
-force=
-while	case "$1" in
-	-pedantic) M=$1 ;;
-	-force) force=$1 ;;
-	-dash) with_dash=y ;;
-	-noinstall) install=noinstall ;;
-	*) break ;;
-	esac
-do
-	shift
-done
-
-test -z "$(git diff --cached --name-status)" || {
-	echo >&2 "Repository unclean."
-	exit 1
-}
-Meta/Make clean >/dev/null 2>&1
-
-test -f /bin/dash || with_dash=
-
-: ${branches='next master maint pu jch'}
-
-for branch in $branches
-do
-	echo >&3 "** $branch **"
-
-	revision=$(git show-ref -s --verify "refs/heads/$branch") || {
-		echo "** No $branch"
-		continue
-	}
-
-	private=$(git rev-parse -q --verify private-$branch 2>/dev/null)
-	case $? in 0|1) ;; *) exit $? ;; esac
-
-	if	installed=$($HOME/git-$branch/bin/git version) &&
-		if version=$(expr "$installed" : '.*\.g\([0-9a-f]*\)$')
-		then
-			:
-		elif version=v$(expr "$installed" : \
-				'git version \(.*\)\.rc[0-9]*$')
-		then
-			version="$version"-$(expr "$installed" : \
-				'git version .*\.\(rc[0-9]*\)$')
-		else
-			version=v$(expr "$installed" : 'git version \(.*\)')
-		fi &&
-		version=$(git rev-parse --verify "$version^0" 2>/dev/null) &&
-		test "z$version" = "z$revision"
-	then
-		echo "* up-to-date version \"$installed\" is already installed from $branch"
-		test -n "$force" || continue
-	fi
-
-	echo "** $branch" &&
-	git checkout $branch &&
-
-	case "$private" in
-	'')
-		;;
-	?*)
-		git merge --squash --no-commit "$private" || {
-			echo >&2 "Cannot apply private edition changes"
-			git reset --hard
-		}
-		;;
-	esac &&
-
-	Meta/Make $M -- $J clean &&
-	case "$with_dash" in
-	y)
-		case "$branch" in
-		master | maint | next | jch)
-			Meta/Make $M -- $J SHELL_PATH=/bin/dash test &&
-			Meta/Make $M -- $J clean
-			;;
-		esac
-		;;
-	esac &&
-
-	Meta/Make $M -- $J all &&
-	Meta/Make $M -- $J test &&
-	case "$branch" in
-	master | maint | next )
-		Meta/Make $M -- doc
-		;;
-	jch )
-		Meta/Make $M -- doc install-doc
-		;;
-	*)
-		: ;;
-	esac &&
-	{
-		test z$install = znoinstall ||
-		Meta/Make $M -- install
-	} &&
-	Meta/Make clean || exit $?
-
-	git reset --hard
-
-done >./:all.log 3>&2 2>&1
-
-git checkout master