(refactor) removed unnecessary code
diff --git a/erpnext/selling/report/sales_analytics/sales_analytics.py b/erpnext/selling/report/sales_analytics/sales_analytics.py
index 46cb5ff..8ecf325 100644
--- a/erpnext/selling/report/sales_analytics/sales_analytics.py
+++ b/erpnext/selling/report/sales_analytics/sales_analytics.py
@@ -40,7 +40,7 @@
 				"fieldtype": "Data",
 				"width": 140
 			})
-		for dummy, end_date in self.periodic_daterange:
+		for end_date in self.periodic_daterange:
 			period = self.get_period(end_date)
 			self.columns.append({
 				"label": _(period),
@@ -169,7 +169,7 @@
 				"entity_name": self.entity_names.get(entity)
 			}
 			total = 0
-			for dummy, end_date in self.periodic_daterange:
+			for end_date in self.periodic_daterange:
 				period = self.get_period(end_date)
 				amount = flt(period_data.get(period, 0.0))
 				row[scrub(period)] = amount
@@ -188,7 +188,7 @@
 				"indent": self.depth_map.get(d.name)
 			}
 			total = 0
-			for dummy, end_date in self.periodic_daterange:
+			for end_date in self.periodic_daterange:
 				period = self.get_period(end_date)
 				amount = flt(self.entity_periodic_data.get(d.name, {}).get(period, 0.0))
 				row[scrub(period)] = amount
@@ -243,8 +243,8 @@
 
 			if period_end_date > to_date:
 				period_end_date = to_date
-			self.periodic_daterange.append([from_date, period_end_date])
 
+			self.periodic_daterange.append(period_end_date)
 			from_date = period_end_date + relativedelta(days=1)
 			if period_end_date == to_date:
 				break