chore: Removed payroll dependencies from Loan Management, moved to hrms app

- Salary Slip Loan dt moved to hrms, removed from erpnext app

- Repay from Salary field removed from Loan and Loan Repayment, installed on hrms app setup

- fixed references to salary slip loan fields

erpnext/setup/utils.py

@@ -36,9 +36,6 @@ def before_tests():
 			}
 		)
 
-	frappe.db.sql("delete from `tabLeave Allocation`")
-	frappe.db.sql("delete from `tabLeave Application`")
-	frappe.db.sql("delete from `tabSalary Slip`")
 	frappe.db.sql("delete from `tabItem Price`")
 
 	_enable_all_roles_for_admin()