chore: Remove heatmap from party dashboards

(cherry picked from commit a8f03e8baa)

erpnext/selling/doctype/customer/customer_dashboard.py

@@ -3,10 +3,6 @@ from frappe import _
 
 def get_data():
 	return {
-		"heatmap": True,
-		"heatmap_message": _(
-			"This is based on transactions against this Customer. See timeline below for details"
-		),
 		"fieldname": "customer",
 		"non_standard_fieldnames": {
 			"Payment Entry": "party",