fix(activity_log): Remove unused import from namespace

frappe/core/doctype/activity_log/activity_log.py

@@ -1,15 +1,14 @@
-# -*- coding: utf-8 -*-
-# Copyright (c) 2017, Frappe Technologies and contributors
+# Copyright (c) 2022, Frappe Technologies and contributors
 # License: MIT. See LICENSE
 
+import frappe
 from frappe import _
-from frappe.utils import get_fullname, now
-from frappe.model.document import Document
 from frappe.core.utils import set_timeline_doc
-import frappe
+from frappe.model.document import Document
 from frappe.query_builder import DocType, Interval
 from frappe.query_builder.functions import Now
-from pypika.terms import PseudoColumn
+from frappe.utils import get_fullname, now
+
 
 class ActivityLog(Document):
 	def before_insert(self):
@@ -50,4 +49,4 @@ def clear_activity_logs(days=None):
 	doctype = DocType("Activity Log")
 	frappe.db.delete(doctype, filters=(
 		doctype.creation < (Now() - Interval(days=days))
-	))
+	))