FIX: Remove site settings override for deprecated url site settings.

app/jobs/scheduled/clean_up_deprecated_url_site_settings.rb

@@ -6,6 +6,7 @@ module Jobs
       Jobs::MigrateUrlSiteSettings::SETTINGS.each do |old_setting, new_setting|
         if SiteSetting.where("name = ? AND value IS NOT NULL", new_setting).exists?
           SiteSetting.public_send("#{old_setting}=", nil, warn: false)
+          SiteSetting.find_by(name: old_setting).destroy!
         end
       end
     end

spec/jobs/clean_up_deprecated_url_site_settings_spec.rb

@@ -21,6 +21,7 @@ RSpec.describe Jobs::CleanUpDeprecatedUrlSiteSettings do
       described_class.new.execute({})
     end.to change { SiteSetting.logo_url }.from("/test/some/url").to("")
 
+    expect(SiteSetting.exists?(name: "logo_url")).to eq(false)
     expect(SiteSetting.logo).to eq(logo_upload)
     expect(SiteSetting.logo_small_url).to eq('/test/another/url')
   end