[Minor] Create default department on country setup (#15206)

* make default department when creating new company

* remove departments and tds entry for the company
diff --git a/erpnext/setup/doctype/company/company.py b/erpnext/setup/doctype/company/company.py
index 057f748..0c58fb2 100644
--- a/erpnext/setup/doctype/company/company.py
+++ b/erpnext/setup/doctype/company/company.py
@@ -95,6 +95,10 @@
 		if frappe.flags.country_change:
 			install_country_fixtures(self.name)
 
+		if not frappe.db.get_value("Department", {"company": self.name}):
+			from erpnext.setup.setup_wizard.operations.install_fixtures import install_post_company_fixtures
+			install_post_company_fixtures(self.name)
+
 		if not frappe.db.get_value("Cost Center", {"is_group": 0, "company": self.name}):
 			self.create_default_cost_center()
 
@@ -329,6 +333,8 @@
 					% (dt, ', '.join(['%s']*len(boms))), tuple(boms))
 
 		frappe.db.sql("delete from tabEmployee where company=%s", self.name)
+		frappe.db.sql("delete from tabDepartment where company=%s", self.name)
+		frappe.db.sql("delete from `tabTax Withholding Account` where company=%s", self.name)
 
 @frappe.whitelist()
 def enqueue_replace_abbr(company, old, new):