remove installation step from travis because it's in Dockerfile

.travis.yml

@@ -11,6 +11,8 @@ before_install:
   - docker-compose up -d
   - docker ps -a
 
+install: true
+
 before_script:
 # Install dependencies in the app container
 - docker-compose exec -T app composer self-update

Dockerfile

@@ -27,7 +27,7 @@ COPY package.json package-lock.json ./
 RUN npm install --production
 RUN npm rebuild node-sass
 RUN npm install pm2 -g
-RUN npm install local-ssl-proxy
+# RUN npm install local-ssl-proxy
 COPY index.js ecosystem.json ./
 COPY --from=build /usr/src/app/dist ./dist
 # for reg production