Update work_order_consumed_materials.py
diff --git a/erpnext/manufacturing/report/work_order_consumed_materials/work_order_consumed_materials.py b/erpnext/manufacturing/report/work_order_consumed_materials/work_order_consumed_materials.py
index 8d2505a..a56c710 100644
--- a/erpnext/manufacturing/report/work_order_consumed_materials/work_order_consumed_materials.py
+++ b/erpnext/manufacturing/report/work_order_consumed_materials/work_order_consumed_materials.py
@@ -2,7 +2,6 @@
 # For license information, please see license.txt
 
 import frappe
-import json
 from frappe import _
 
 def execute(filters=None):
@@ -128,4 +127,4 @@
 			"fieldtype": "Float",
 			"width": 100
 		}
-	]
\ No newline at end of file
+	]