Fix project_user_quotas_user_id_deleted_idx index

The project_user_quotas_user_id_deleted_idx index in the 203 migration
for the project_user_quotas table was using the wrong column, it should
be using user_id instead of project_id since there is already an index
for the project_id column (defined directly above it).

Fixes bug 1205693

Change-Id: I6899afe5b57432345f69b4ee91ef947a4b9ef5c9
Merge "Fix project_user_quotas_user_id_deleted_idx index"