docker-compose.yml in pbmenv-0.1.12 vs docker-compose.yml in pbmenv-0.1.13

@@ -6,9 +6,7 @@
     build: .
     command: bash
     volumes:
       - './:/pbmenv'
       - bundle_path:/bundle
-    environment:
-      - BUNDLE_PATH=/bundle
 volumes:
   bundle_path: