Update install-feature for pre-install

Since the feature zip files will be extracted during docker build,
the install-features scripts need to be modified so that the script
will not fail when the zip file does not exist, since the zip file
will have already been unzipped.

Change-Id: I441064226db956addae5c2f238114ce3965c13ef
Signed-off-by: Patrick Brady <patrick.brady@att.com>
Issue-ID: APPC-1337
diff --git a/appc-dispatcher/appc-dispatcher-installer/src/main/resources/scripts/install-feature.sh b/appc-dispatcher/appc-dispatcher-installer/src/main/resources/scripts/install-feature.sh
index 13a8fda..dd474f8 100755
--- a/appc-dispatcher/appc-dispatcher-installer/src/main/resources/scripts/install-feature.sh
+++ b/appc-dispatcher/appc-dispatcher-installer/src/main/resources/scripts/install-feature.sh
@@ -33,9 +33,7 @@
 if [ -f ${REPOZIP} ]
 then
 	unzip -n -d ${ODL_HOME} ${REPOZIP}
-else
-	echo "ERROR : repo zip ($REPOZIP) not found"
-	exit 1
+
 fi
 
 # ${ODL_KARAF_CLIENT} ${ODL_KARAF_CLIENT_OPTS} feature:repo-add ${features.repositories}