Fix drone config

.drone.yml

@@ -11,10 +11,11 @@ steps:
   - go build
 - name: Run
   image: golang
+  environment:
+    DISCORD_TOKEN:
+      from_secret: discord_token
   commands:
-  - echo $${SECRET_MESSAGE}
   - ./Phasmobot -t $${DISCORD_TOKEN}
-  secrets: [ discord_token, secret_message ]
   when:
     branch:
       - deploy