[remove] lines readonly

views/account_invoice.xml

@@ -18,7 +18,7 @@
                                 <field name="pca_export_date" readonly="1"/>
                             </group>
                         </group>
-                        <field name="invoice_pcafae_line_ids" attrs="{'readonly': [('pca_export_date', '=', True)]}">
+                        <field name="invoice_pcafae_line_ids">
                             <tree editable="bottom">
                                 <field name="year"/>
                                 <field name="year_percent"/>