Remove non-MVP reporting elements

- Edits views to only show spending at the portfolio level -- no longer
  broken out by JEDI CLIN
- Removes Monthly Spending table -- keeps the template, just no longer
  uses it.
- Removes amount unspent from the expired funding table

templates/portfolios/reports/index.html

@@ -13,7 +13,5 @@
     <hr>
     {% include "portfolios/reports/obligated_funds.html" %}
     {% include "portfolios/reports/expired_task_orders.html" %}
-    <hr>
-    {% include "portfolios/reports/application_and_env_spending.html" %}
   </div>
 {% endblock %}