Revert "Prevent the recipe to get stuck without manual intervention"

This reverts commit 80cebb04.

stack/erp5.cfg

@@ -245,8 +245,8 @@ stop-on-error = true
 repository = http://git.erp5.org/repos/erp5.git
 branch = master
 revision =
-command = ((${git:location}/bin/git clone --quiet -b ${:branch} ${:repository} ${:location}) || (rm -fr ${:location} ; exit 1)) && if [ -n ${:revision} ]; then cd ${:location} && ((${git:location}/bin/git reset --quiet --hard ${:revision}) || (rm -fr ${:location} ; exit 1)) ; fi
-update-command = cd ${:location} && ((${git:location}/bin/git pull --quiet) || (rm -fr ${:location} ; exit 1)) && if [ -n ${:revision} ]; then cd ${:location} && ((${git:location}/bin/git reset --quiet --hard ${:revision} || (rm -fr ${:location} ; exit 1)) ; fi
+command = ${git:location}/bin/git clone --quiet -b ${:branch} ${:repository} ${:location} && if [ -n ${:revision} ]; then cd ${:location} && ${git:location}/bin/git reset --quiet --hard ${:revision} ; fi
+update-command = cd ${:location} && ${git:location}/bin/git pull --quiet && if [ -n ${:revision} ]; then cd ${:location} && ${git:location}/bin/git reset --quiet --hard ${:revision} ; fi
 
 [beteireflow-repository]
 <= erp5