Revert adding deprecate info in our docs

Author: dadoonet

docs/reference/migration/index.asciidoc

@@ -1,14 +1,11 @@
 [[breaking-changes]]
-= Breaking changes and depreciations
+= Breaking changes
 
 [partintro]
 --
 This section discusses the changes that you need to be aware of when migrating
 your application from one version of Elasticsearch to another.
 
-It also helps to move away from deprecating settings and features before they will get removed
-in a next major version.
-
 As a general rule:
 
 * Migration between minor versions -- e.g. `5.x` to `5.y` -- can be

docs/reference/migration/migrate_5_3.asciidoc

@@ -53,42 +53,3 @@ is deprecated.
 Usage of any value other than `false`, `"false", `true` and `"true"` for
 boolean values in mappings is deprecated.
 
-[[deprecated_53]]
-== Deprecated in 5.3
-
-[[deprecated_53_settings_changes]]
-[float]
-=== Settings changes
-
-[float]
-==== Repository Azure plugin
-
-Global repositories settings you are able to set in elasticsearch config file under `repositories.azure`
-name space are now deprecated. You must set those settings per repository instead.
-See {plugins}/repository-azure-usage.html#repository-azure-repository-settings[Azure Repository settings].
-
-
-.Deprecated settings
-|===
-|Old setting |New setting
-
-|`repositories.azure.account`
-|`account`
-
-|`repositories.azure.container`
-|`container`
-
-|`repositories.azure.base_path`
-|`base_path`
-
-|`repositories.azure.location_mode`
-|`location_mode`
-
-|`repositories.azure.chunk_size`
-|`chunk_size`
-
-|`repositories.azure.compress`
-|`compress`
-|===
-
-