fix missing env vars

.travis.yml

@@ -89,11 +89,10 @@ jobs:
        channel: stable
     env:
     - SNAPCRAFT_IMAGE_INFO: '{"build_url": "$TRAVIS_BUILD_URL"}'
-    before_install:
+    install:
     - sudo /snap/bin/lxd.migrate -yes
     - sudo /snap/bin/lxd waitready
     - sudo /snap/bin/lxd init --auto
-    install:
     script:
     - ./scripts/build_snap.sh
     after_failure:
@@ -143,7 +142,6 @@ deploy:
     snap: dvc_*.snap
     channel: $RELEASE_SNAP_CHANNEL
     skip_cleanup: true
-    edge: true
     on:
       all_branches: true
       # TODO: revert for below