Remove latest activity column

Having both "Latest email" and "Latest activity" on the main commitfest
list kind of useless. The "Latest activity" often is simply the date
that a patch was moved to the next commitfest, so it's content is rather
useless in general. If we improve the commitfest app to contain more
useful info (e.g. by implementing #19) it might become more useful to
have this timestamp though. For now it seems fine to remove it though,
and once we implement #10 we can add his back as an option.

Author: JelteF

pgcommitfest/commitfest/templates/commitfest.html

@@ -70,7 +70,6 @@ <h3>{{p.is_open|yesno:"Active patches,Closed patches"}}</h3>
       <th>Reviewers</th>
       <th>Committer</th>
       <th><a href="#" style="color:#333333;" onclick="return sortpatches(3);">Num cfs</a>{%if sortkey == 3%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%elif sortkey == -3%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-up"></i></div>{%endif%}</th>
-      <th><a href="#" style="color:#333333;" onclick="return sortpatches(1);">Latest activity</a>{%if sortkey == 1%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%elif sortkey == -1%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-up"></i></div>{%endif%}</th>
       <th><a href="#" style="color:#333333;" onclick="return sortpatches(2);">Latest mail</a>{%if sortkey == 2%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-down"></i></div>{%elif sortkey == -2%}<div style="float:right;"><i class="glyphicon glyphicon-arrow-up"></i></div>{%endif%}</th>
       {%if user.is_staff%}
        <th>Select</th>
@@ -125,7 +124,6 @@ <h3>{{p.is_open|yesno:"Active patches,Closed patches"}}</h3>
     <td>{{p.reviewer_names|default:''}}</td>
     <td>{{p.committer|default:''}}</td>
     <td>{{p.num_cfs}}</td>
-    <td style="white-space: nowrap;">{{p.modified|date:"Y-m-d"}}<br/>{{p.modified|date:"H:i"}}</td>
     <td style="white-space: nowrap;">{{p.lastmail|date:"Y-m-d"}}<br/>{{p.lastmail|date:"H:i"}}</td>
     {%if user.is_staff%}
      <td style="white-space: nowrap;"><input type="checkbox" class="sender_checkbox" id="send_authors_{{p.id}}">Author<br/><input type="checkbox" class="sender_checkbox" id="send_reviewers_{{p.id}}">Reviewer</td>

pgcommitfest/commitfest/views.py

@@ -239,11 +239,7 @@ def commitfest(request, cfid):
         except ValueError:
             sortkey = 0
 
-        if sortkey == 1:
-            orderby_str = "modified, created"
-        elif sortkey == -1:
-            orderby_str = "modified DESC, created DESC"
-        elif sortkey == 2:
+        if sortkey == 2:
             orderby_str = "lastmail, created"
         elif sortkey == -2:
             orderby_str = "lastmail DESC, created DESC"