--- orig.activitystream.install	2008-04-10 20:52:48.000000000 +0000
+++ activitystream.install	2008-04-10 20:52:22.000000000 +0000
@@ -57,4 +57,12 @@ function activitystream_uninstall() {
   while ($variable = db_fetch_object($variables)) {
     variable_del($variable->name);
   }
+  $variables = db_query("SELECT * FROM {profile_fields} WHERE title = 'Placeholder' and name = 'profile_activitystream_placeholder'");
+  while (variable = db_fetch_object($variables)) {
+    update_sql("DELETE FROM {profile_fields} WHERE title = 'Placeholder' and name = 'profile_activitystream_placeholder'");
+  }
+  $variables = db_query("SELECT * FROM {system} WHERE name like '%activitystream'");
+  while (variable = db_fetch_object($variables)) {
+    update_sql("DELETE FROM {system} WHERE name like '%activitystream'");
+  }
 }
\ No newline at end of file