remove unnecessary change

Signed-off-by: Huabing (Robin) Zhao <zhaohuabing@gmail.com>

Author: zhaohuabing

site/content/en/v1.4/api/extension_types.md

@@ -1931,20 +1931,6 @@ _Appears in:_
 | `after` | _[EnvoyFilter](#envoyfilter)_ |  true  |  | After defines the filter that should come after the filter.<br />Only one of Before or After must be set. |
 
 
-#### FromNamespaces
-
-_Underlying type:_ _string_
-
-
-
-_Appears in:_
-- [TargetSelectorNamespaces](#targetselectornamespaces)
-
-| Value | Description |
-| ----- | ----------- |
-| `All` | FromNamespacesAll indicates that the target selector should apply to targets from all namespaces<br /> | 
-
-
 #### GRPCActiveHealthChecker
 
 
@@ -4631,20 +4617,6 @@ _Appears in:_
 | `matchExpressions` | _[LabelSelectorRequirement](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.29/#labelselectorrequirement-v1-meta) array_ |  false  |  | MatchExpressions is a list of label selector requirements. The requirements are ANDed. |
 
 
-#### TargetSelectorNamespaces
-
-
-
-TargetSelectorNamespaces determines which namespaces are used when selecting policy targets.
-
-_Appears in:_
-- [TargetSelector](#targetselector)
-
-| Field | Type | Required | Default | Description |
-| ---   | ---  | ---      | ---     | ---         |
-| `from` | _[FromNamespaces](#fromnamespaces)_ |  true  |  | Indicates where targets would be selected for the Policy's TargetSelector. |
-
-
 #### Timeout