feat: avoid duplicated errors

app/models/lettings_log.rb

@@ -521,10 +521,8 @@ class LettingsLog < Log
   def blank_compound_invalid_non_setup_fields!
     super
 
-    validate_property_postcode(self)
     self.postcode_known = nil if errors.of_kind?(:postcode_full, :wrong_format)
 
-    validate_net_income(self)
     if errors.of_kind?(:earnings, :under_hard_min)
       self.earnings = nil
       self.incfreq = nil

app/models/log.rb

@@ -141,10 +141,8 @@ class Log < ApplicationRecord
   end
 
   def blank_compound_invalid_non_setup_fields!
-    validate_previous_accommodation_postcode(self)
     self.ppcodenk = nil if errors.of_kind?(:ppostcode_full, :wrong_format)
 
-    process_uprn_change!
     if errors.of_kind?(:uprn, :uprn_error)
       self.uprn_known = 0
       self.uprn_confirmed = nil

app/models/sales_log.rb

@@ -359,10 +359,8 @@ class SalesLog < Log
   def blank_compound_invalid_non_setup_fields!
     super
 
-    validate_property_postcode(self)
     self.pcodenk = nil if errors.of_kind?(:postcode_full, :wrong_format)
 
-    validate_previous_postcode(self)
     if errors.of_kind?(:postcode_full, :postcodes_not_matching)
       self.ppcodenk = nil
     end