removal of extra cd

.travis.yml

@@ -20,10 +20,10 @@ before_deploy: cd $TEST_DIR && ./before_deploy.sh
 deploy:
   - provider: script
     skip_cleanup: true
-    script: cd $TEST_DIR && ./deploy.sh
+    script: ./deploy.sh
     on:
       repo: 10thmagnitude/terraform
       branch: topic-101-vm-simple-linux
 
 # destroy resources with Azure CLI
-after_deploy: cd $TEST_DIR && ./after_deploy.sh
+after_deploy: ./after_deploy.sh