Annotations: Exclude internal dashboard id when saved via UID (#111535)

docs/sources/developers/http_api/annotations.md

@@ -70,7 +70,6 @@ Content-Type: application/json
 ```
 
 > Starting in Grafana v6.4 regions annotations are now returned in one entity that now includes the timeEnd property.
-
 
 ## Create Annotation
 
@@ -80,7 +79,6 @@ Content-Type: application/json
 
 The format for `time` and `timeEnd` should be epoch numbers in millisecond resolution.
 
-
 `POST /api/annotations`
 
 **Required permissions**
@@ -90,7 +88,6 @@ Content-Type: application/json
 <!-- prettier-ignore-start -->
 | Action               | Scope                                                                                                                                                        |
 | -------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-<!-- prettier-ignore-end -->
 | `annotations:create` | <ul><li>`annotations:*`</li><li>`annotations:type:*`</li><li>`dashboards:*`</li><li>`dashboards:uid:*`</li><li>`folders:*`</li><li>`folders:uid:*`</li></ul> |
 { .no-spacing-list }
 <!-- prettier-ignore-end -->
@@ -99,7 +96,6 @@ Content-Type: application/json
 
 - `text`: description of the annotation.
 
-POST /api/annotations HTTP/1.1
 **Example Request**:
 
 ```http
@@ -145,7 +141,6 @@ Content-Type: application/json
 
 ```
 
-Content-Type: application/json
 **Example Response**:
 
 ```http