fix release.sh: git_assert_branch_in_sync not exist in 3.4

Signed-off-by: Benjamin Wang <wachao@vmware.com>

scripts/build-binary.sh

@@ -6,7 +6,7 @@ source ./scripts/test_lib.sh
 
 VER=$1
 PROJ="etcd"
-REPOSITORY="${REPOSITORY:-git@github.com:etcd-io/etcd.git}"
+REPOSITORY="${REPOSITORY:-https://github.com/etcd-io/etcd.git}"
 
 if [ -z "$1" ]; then
 	echo "Usage: ${0} VERSION" >> /dev/stderr

scripts/release.sh

@@ -69,8 +69,6 @@ main() {
     cd "${reldir}/etcd" || exit 2
     git checkout "${BRANCH}" || exit 2
     git pull origin
-
-    git_assert_branch_in_sync || exit 2
   fi
   
   # If a release version tag already exists, use it.