[docs] Remove experimental message from saved objects import and expo…

…rt apis for 8.12 (#202529)

## Summary

Same as #202173 but for 8.12


### Checklist

Check the PR satisfies following conditions. 

- [x]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials

docs/api/saved-objects/export.asciidoc

@@ -4,7 +4,7 @@
 <titleabbrev>Export objects</titleabbrev>
 ++++
 
-experimental[] Retrieve sets of saved objects that you want to import into {kib}.
+Retrieve sets of saved objects that you want to import into {kib}.
 
 [NOTE]
 ====

docs/api/saved-objects/import.asciidoc

@@ -4,7 +4,7 @@
 <titleabbrev>Import objects</titleabbrev>
 ++++
 
-experimental[] Create sets of {kib} saved objects from a file created by the export API.
+Create sets of {kib} saved objects from a file created by the export API.
 
 [NOTE]
 ====

docs/api/saved-objects/resolve_import_errors.asciidoc

@@ -4,7 +4,7 @@
 <titleabbrev>Resolve import errors</titleabbrev>
 ++++
 
-experimental[] Resolve errors from the <<saved-objects-api-import,Import objects API>>.
+Resolve errors from the <<saved-objects-api-import,Import objects API>>.
 
 To resolve errors, you can:
 

packages/core/saved-objects/docs/openapi/bundled.json

@@ -386,7 +386,7 @@
       "post": {
         "summary": "Retrieve sets of saved objects that you want to import into Kibana.",
         "operationId": "exportSavedObjects",
-        "description": "\nYou must include `type` or `objects` in the request body.\n\nNOTE: The `savedObjects.maxImportExportSize` configuration setting limits the number of saved objects which may be exported.\n\nThis functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.\n",
+        "description": "\nYou must include `type` or `objects` in the request body.\n\nNOTE: The `savedObjects.maxImportExportSize` configuration setting limits the number of saved objects which may be exported.\n",
         "tags": [
           "saved objects"
         ],
@@ -644,7 +644,7 @@
       "post": {
         "summary": "Create sets of Kibana saved objects from a file created by the export API.",
         "operationId": "importSavedObjects",
-        "description": "Saved objects can be imported only into the same version, a newer minor on the same major, or the next major. Exported saved objects are not backwards compatible and cannot be imported into an older version of Kibana.\n\nThis functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.\n",
+        "description": "Saved objects can be imported only into the same version, a newer minor on the same major, or the next major. Exported saved objects are not backwards compatible and cannot be imported into an older version of Kibana.\n",
         "tags": [
           "saved objects"
         ],
@@ -757,7 +757,7 @@
       "post": {
         "summary": "Resolve errors from the Import objects API.",
         "operationId": "resolveImportErrors",
-        "description": "To resolve errors, you can:\n\n* Retry certain saved objects\n* Overwrite specific saved objects\n* Change references to different saved objects\n\nThis functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.\n",
+        "description": "To resolve errors, you can:\n\n* Retry certain saved objects\n* Overwrite specific saved objects\n* Change references to different saved objects\n",
         "tags": [
           "saved objects"
         ],

packages/core/saved-objects/docs/openapi/bundled.yaml

@@ -259,8 +259,6 @@ paths:
         You must include `type` or `objects` in the request body.
 
         NOTE: The `savedObjects.maxImportExportSize` configuration setting limits the number of saved objects which may be exported.
-
-        This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
       tags:
         - saved objects
       parameters:
@@ -418,8 +416,6 @@ paths:
       operationId: importSavedObjects
       description: |
         Saved objects can be imported only into the same version, a newer minor on the same major, or the next major. Exported saved objects are not backwards compatible and cannot be imported into an older version of Kibana.
-
-        This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
       tags:
         - saved objects
       parameters:
@@ -508,8 +504,6 @@ paths:
         * Retry certain saved objects
         * Overwrite specific saved objects
         * Change references to different saved objects
-
-        This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
       tags:
         - saved objects
       parameters:

packages/core/saved-objects/docs/openapi/paths/api@saved_objects@_export.yaml

@@ -6,8 +6,6 @@ post:
     You must include `type` or `objects` in the request body.
 
     NOTE: The `savedObjects.maxImportExportSize` configuration setting limits the number of saved objects which may be exported.
-
-    This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
   tags:
     - saved objects
   parameters:

packages/core/saved-objects/docs/openapi/paths/api@saved_objects@_import.yaml

@@ -3,8 +3,6 @@ post:
   operationId: importSavedObjects
   description: |
     Saved objects can be imported only into the same version, a newer minor on the same major, or the next major. Exported saved objects are not backwards compatible and cannot be imported into an older version of Kibana.
-
-    This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
   tags:
     - saved objects
   parameters:

packages/core/saved-objects/docs/openapi/paths/api@saved_objects@_resolve_import_errors.yaml

@@ -7,8 +7,6 @@ post:
     * Retry certain saved objects
     * Overwrite specific saved objects
     * Change references to different saved objects
-
-    This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
   tags:
     - saved objects
   parameters: