remove .env file from testing and app-integration-test flows

docker-compose.yml

@@ -10,12 +10,14 @@ services:
     volumes:
       - .:/usr/src/app
 
+  # Note that neither app-integration-test or test modes require env variables,
+  # need to find a way to pass variables without .env if this changes
+
   app-integration-test:
     build: .
     command: npm run start:dev integration-testing
     ports:
       - "4000:4000"
-    env_file: .env
     depends_on:
       - redis
     volumes:
@@ -24,7 +26,6 @@ services:
   test:
     build: .
     command: npm run test
-    env_file: .env
     depends_on:
       - redis
     volumes: