remove toggling SO and DN field in SI based on pos
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
index 96b47c6..22e0a38 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
@@ -218,17 +218,13 @@
 	par_flds = ['project_name', 'due_date', 'is_opening', 'source', 'total_advance', 'get_advances_received',
 	'advances', 'sales_partner', 'commission_rate', 'total_commission', 'advances', 'from_date', 'to_date'];
 
-	item_flds_normal = ['sales_order', 'delivery_note']
-
 	if(cint(doc.is_pos) == 1) {
 		hide_field(par_flds);
-		cur_frm.fields_dict['items'].grid.set_column_disp(item_flds_normal, false);
 	} else {
 		for (i in par_flds) {
 			var docfield = frappe.meta.docfield_map[doc.doctype][par_flds[i]];
 			if(!docfield.hidden) unhide_field(par_flds[i]);
 		}
-		cur_frm.fields_dict['items'].grid.set_column_disp(item_flds_normal, true);
 	}
 
 	item_flds_stock = ['serial_no', 'batch_no', 'actual_qty', 'expense_account', 'warehouse', 'expense_account', 'warehouse']