Remove duplicate definition of ENV variables

Author: erikap

Dockerfile

@@ -11,9 +11,6 @@ COPY . /usr/src/app
 RUN ln -s /app/app.js /usr/src/app/
 RUN npm install
 
-ENV MU_SPARQL_ENDPOINT 'http://database:8890/sparql'
-ENV MU_APPLICATION_GRAPH 'http://mu.semte.ch/application'
-
 CMD sh boot.sh
 
 ONBUILD ADD . /app/