chore!: remove activity log feeds (#33294)

- This contains little to no information and practically no one uses this.
- Also causes a lot of problem by adding way too many feeds in activity
  log to the point where activity page doesn't even load.

erpnext/crm/doctype/lead/lead.py

@@ -14,9 +14,6 @@ from erpnext.crm.utils import CRMNote, copy_comments, link_communications, link_
 
 
 class Lead(SellingController, CRMNote):
-	def get_feed(self):
-		return "{0}: {1}".format(_(self.status), self.lead_name)
-
 	def onload(self):
 		customer = frappe.db.get_value("Customer", {"lead_name": self.name})
 		self.get("__onload").is_customer = customer