perf(minor): remove unnecessary comprehensions (#25645)

diff --git a/erpnext/utilities/transaction_base.py b/erpnext/utilities/transaction_base.py
index f99da58..db99726 100644
--- a/erpnext/utilities/transaction_base.py
+++ b/erpnext/utilities/transaction_base.py
@@ -147,7 +147,7 @@
 		if hasattr(self, "prev_link_mapper") and self.prev_link_mapper.get(for_doctype):
 			fieldname = self.prev_link_mapper[for_doctype]["fieldname"]
 
-			values = filter(None, tuple([item.as_dict()[fieldname] for item in self.items]))
+			values = filter(None, tuple(item.as_dict()[fieldname] for item in self.items))
 
 			if values:
 				ret = {
@@ -180,7 +180,7 @@
 	if isinstance(qty_fields, string_types):
 		qty_fields = [qty_fields]
 
-	distinct_uoms = list(set([d.get(uom_field) for d in doc.get_all_children()]))
+	distinct_uoms = list(set(d.get(uom_field) for d in doc.get_all_children()))
 	integer_uoms = list(filter(lambda uom: frappe.db.get_value("UOM", uom,
 		"must_be_whole_number", cache=True) or None, distinct_uoms))