Merge branch 'deleted_post_code_fix' into 'master'

[ABW]: fixed error code (previously used was in reserved pool)

See merge request !144

hivemind/tavern/condenser_api_negative/get_content/deleted_post.pat.json

 {
-  "code": -32199,
+  "code": -31999,
   "data": "Post jsc/testing-summary was deleted 1 time(s)",
   "message": "Invalid parameters"
 }

hivemind/tavern/condenser_api_negative/get_content/multi_deleted_post.pat.json

 {
-  "code": -32199,
+  "code": -31999,
   "data": "Post ilmam/test was deleted 5 time(s)",
   "message": "Invalid parameters"
 }

hivemind/tavern/condenser_api_negative/get_content_replies/deleted_post.pat.json

 {
-  "code": -32199,
+  "code": -31999,
   "data": "Post jsc/testing-summary was deleted 1 time(s)",
   "message": "Invalid parameters"
 }

hivemind/tavern/condenser_api_negative/get_content_replies/multi_deleted_post.pat.json

 {
-  "code": -32199,
+  "code": -31999,
   "data": "Post ilmam/test was deleted 5 time(s)",
   "message": "Invalid parameters"
 }