moved ABIWORD env from d-c.yml to dockerfile

pica-etherpad/Dockerfile

@@ -104,4 +104,5 @@ USER etherpad
 EXPOSE 8080
 HEALTHCHECK --interval=20s --timeout=3s CMD curl --fail http://localhost:8080 || exit 1
 WORKDIR /opt/etherpad-lite/
+ENV ABIWORD "/usr/bin/abiword" #installed here by debian
 ENTRYPOINT ["/opt/etherpad-lite/entrypoint.sh", "/opt/etherpad-lite/bin/run.sh" ]

pica-etherpad/docker-compose.yml

@@ -84,7 +84,6 @@ services:
       THEME: "colibris"
       TITLE: "Picapad"
       TRUST_PROXY: "true"
-      ABIWORD: "/usr/bin/abiword"
     networks:
       - proxy
       - standard_app-db
@@ -116,7 +115,6 @@ services:
       THEME: "colibris"
       TITLE: "Picapad Hebdo"
       TRUST_PROXY: "true"
-      ABIWORD: "/usr/bin/abiword"
     depends_on:
       - week_db
     networks: