Remove compile translations step in insights role

We keep the compiled translation files in git already and have an automated job that compiles them regularly, so there's no need to keep this step that seems to be causing the insights AMI building to fail.

playbooks/roles/insights/tasks/main.yml

@@ -106,15 +106,6 @@
     - assets
     - assets:gather
 
-- name: compile translations
-  shell: ". {{ insights_venv_dir }}/bin/activate && i18n_tool generate -v"
-  args:
-    chdir: "{{ insights_code_dir }}/analytics_dashboard"
-  become_user: "{{ insights_user }}"
-  tags:
-    - assets
-    - assets:gather
-
 - name: write out the supervisior wrapper
   template:
     src: "edx/app/insights/insights.sh.j2"