osmclient v7 fix the python2 issue

Change-Id: I8f63d69c7680480ea3b7b3c113f54b638f450d35
Signed-off-by: madavi <jm00553988@techmahindra.com>
diff --git a/devops-stages/stage-build.sh b/devops-stages/stage-build.sh
index 7b00243..76065b3 100755
--- a/devops-stages/stage-build.sh
+++ b/devops-stages/stage-build.sh
@@ -14,4 +14,4 @@
 # limitations under the License.
 
 rm -rf deb_dist osmclient-*.tar.gz
-tox -e build,build3
+tox -e build3