remove test merged-usr-via-setup-hook as merged-/usr is now the default

coverage.txt

@@ -207,9 +207,6 @@ Needs-Root: true
 Test: include-with-multiple-apt-sources
 Needs-Root: true
 
-Test: merged-usr-via-setup-hook
-Needs-Root: true
-
 Test: essential-hook
 Needs-Root: true
 

tests/merged-usr-via-setup-hook

@@ -1,50 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
-{{ CMD }} --mode=root --variant=apt \
-	--essential-hook=./hooks/merged-usr/essential00.sh \
-	--setup-hook=./hooks/merged-usr/setup00.sh \
-	--customize-hook='[ -L "$1"/bin -a -L "$1"/sbin -a -L "$1"/lib ]' \
-	{{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort > tar2.txt
-{
-	sed -e 's/^\.\/bin\//.\/usr\/bin\//;s/^\.\/lib\//.\/usr\/lib\//;s/^\.\/sbin\//.\/usr\/sbin\//;' tar1.txt | {
-		case {{ HOSTARCH }} in
-		amd64) sed -e 's/^\.\/lib32\//.\/usr\/lib32\//;s/^\.\/lib64\//.\/usr\/lib64\//;s/^\.\/libx32\//.\/usr\/libx32\//;';;
-		ppc64el) sed -e 's/^\.\/lib64\//.\/usr\/lib64\//;';;
-		*) cat;;
-		esac
-	};
-	echo ./bin;
-	echo ./lib;
-	echo ./sbin;
-	case {{ HOSTARCH }} in
-	amd64)
-		echo ./lib32;
-		echo ./lib64;
-		echo ./libx32;
-		echo ./usr/lib32/;
-		echo ./usr/libx32/;
-		;;
-	i386)
-		echo ./lib64;
-		echo ./libx32;
-		echo ./usr/lib64/;
-		echo ./usr/libx32/;
-		;;
-	ppc64el)
-		echo ./lib64;
-		;;
-	s390x)
-		echo ./lib32;
-		echo ./usr/lib32/;
-		;;
-	esac
-	echo ./usr/share/doc/usr-is-merged/
-	echo ./usr/share/doc/usr-is-merged/changelog.gz
-	echo ./usr/share/doc/usr-is-merged/copyright
-	echo ./var/lib/dpkg/info/usr-is-merged.list
-	echo ./var/lib/dpkg/info/usr-is-merged.md5sums
-	echo ./var/lib/dpkg/info/usr-is-merged.preinst
-} | sort -u | diff -u - tar2.txt