Drop support for stretch build (was already broken anyway because of sh syntax ?\!), simplify mysterious npm install hook

scripts/pbuilder/hooks/D80patch-yunohost-admin

@@ -8,53 +8,12 @@
 
 if ls -d /build/yunohost-admin* >dev/null 2>&1
 then
-	echo "======================================================"
-	DIST="$(cat /etc/os-release | grep CODENAME= | cut -d = -f 2)"
-	if [ "$DIST" == "stretch" ]
-	then
-		/usr/bin/apt-get install git nodejs -y
-	echo "========================"
-	echo "Patching debian/rules ..."
-	echo "========================"
-	cd /build/yunohost-admin* 
-	cat << EOF > rules.patch
-diff --git a/debian/rules b/debian/rules
-index b031511..477f27c 100755
---- a/debian/rules
-+++ b/debian/rules
-@@ -20,12 +20,14 @@ override_dh_auto_build:
- 	sed -i 's/VERSION/\$(DEBVERS)/g' src/index.html
- 
- 	# Run npm/bower/gulp
--	cd src ; npm --progress false --loglevel warn --color false install
-+	#cd src ; npm --progress false --loglevel warn --color false install
- 	cd src ; node_modules/gulp/bin/gulp.js build
-+	rm -rf src/node_modules
-+	rm -rf src/bower_components
- 
- override_dh_clean:
- 	dh_clean
--	rm -rf src/node_modules
--	rm -rf src/bower_components
-+	#rm -rf src/node_modules
-+	#rm -rf src/bower_components
- 	rm -rf src/dist
-EOF
-	patch -p1 < rules.patch
-	fi
-
 	echo "========================"
 	echo "Starting npm install ..."
 	echo "========================"
 	mkdir /nonexistent
 	chown pbuilder:pbuilder /nonexistent
 	cd /build/yunohost-admin*/app
-	if [ "$DIST" == "stretch" ]
-	then
-		su pbuilder -c "npm install"
-	else
-		su pbuilder -c "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin npm ci"
-	fi
-	echo "======================================================"
+	su pbuilder -c "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin npm --progress false ci"
 fi