Better handling of Inline schema (#15682)

* skip allOf inline subschema created as $ref

* add option for fallback

* add back atleastonemodel

* add log

* update java, kotlin, js samples

* update tests

* fix native client test

* fix java client errors by regenerating test files

* clean up python

* clean up powershell

* clean up php

* clean up ruby

* update erlang, elixir

* update dart samples

* update ts samples

* update r, go samples

* update perl

* update swift

* add back files

* add back files

* remove outdated test files

* fix test

samples/client/petstore/java/resttemplate/docs/BigCatAllOf.md

@@ -1,24 +0,0 @@
-
-
-# BigCatAllOf
-
-
-## Properties
-
-| Name | Type | Description | Notes |
-|------------ | ------------- | ------------- | -------------|
-|**kind** | [**KindEnum**](#KindEnum) |  |  [optional] |
-
-
-
-## Enum: KindEnum
-
-| Name | Value |
-|---- | -----|
-| LIONS | "lions" |
-| TIGERS | "tigers" |
-| LEOPARDS | "leopards" |
-| JAGUARS | "jaguars" |
-
-
-

samples/client/petstore/java/resttemplate/docs/CatAllOf.md

@@ -1,13 +0,0 @@
-
-
-# CatAllOf
-
-
-## Properties
-
-| Name | Type | Description | Notes |
-|------------ | ------------- | ------------- | -------------|
-|**declawed** | **Boolean** |  |  [optional] |
-
-
-

samples/client/petstore/java/resttemplate/docs/DogAllOf.md

@@ -1,13 +0,0 @@
-
-
-# DogAllOf
-
-
-## Properties
-
-| Name | Type | Description | Notes |
-|------------ | ------------- | ------------- | -------------|
-|**breed** | **String** |  |  [optional] |
-
-
-