Merge pull request #2306 from alphagov/drop-stats_template_usage_by_month

Drop stats_template_usage_by_month table as it is no longer needed.

app/models.py

@@ -1834,48 +1834,6 @@ class AuthType(db.Model):
     name = db.Column(db.String, primary_key=True)
 
 
-class StatsTemplateUsageByMonth(db.Model):
-    __tablename__ = "stats_template_usage_by_month"
-
-    template_id = db.Column(
-        UUID(as_uuid=True),
-        db.ForeignKey('templates.id'),
-        unique=False,
-        index=True,
-        nullable=False,
-        primary_key=True
-    )
-    month = db.Column(
-        db.Integer,
-        nullable=False,
-        index=True,
-        unique=False,
-        primary_key=True,
-        default=datetime.datetime.month
-    )
-    year = db.Column(
-        db.Integer,
-        nullable=False,
-        index=True,
-        unique=False,
-        primary_key=True,
-        default=datetime.datetime.year
-    )
-    count = db.Column(
-        db.Integer,
-        nullable=False,
-        default=0
-    )
-
-    def serialize(self):
-        return {
-            'template_id': str(self.template_id),
-            'month': self.month,
-            'year': self.year,
-            'count': self.count
-        }
-
-
 class DailySortedLetter(db.Model):
     __tablename__ = "daily_sorted_letter"