Remove unsupported redirect codes according to Symfony

Closes #3195836

config/install/views.view.redirect.yml

@@ -485,20 +485,6 @@ display:
                   min: ''
                   max: ''
               5:
-                title: '304 Not Modified'
-                operator: '='
-                value:
-                  value: '304'
-                  min: ''
-                  max: ''
-              6:
-                title: '305 Use Proxy'
-                operator: '='
-                value:
-                  value: '305'
-                  min: ''
-                  max: ''
-              7:
                 title: '307 Temporary Redirect'
                 operator: '='
                 value: