Remove historization on some removed models

payment_term.py

@@ -10,20 +10,6 @@ class PaymentTerm(ModelSQL, ModelView):
 PaymentTerm()
 
 
-class PaymentTermLineType(ModelSQL, ModelView):
-    _name = 'account.invoice.payment_term.line.type'
-    _history = True
-
-PaymentTermLineType()
-
-
-class PaymentTermLineDelay(ModelSQL, ModelView):
-    _name = 'account.invoice.payment_term.line.delay'
-    _history = True
-
-PaymentTermLineDelay()
-
-
 class PaymentTermLine(ModelSQL, ModelView):
     _name = 'account.invoice.payment_term.line'
     _history = True