fix(simple-combo): remove simple combo limitation

docs/angular/src/content/en/components/simple-combo.mdx

@@ -385,7 +385,6 @@ The default `type` of the `IgxSimpleCombo` is `box` unlike the [`IgxSelect`](/se
 
 ## Known Issues
 
-- The simple combobox does not have input for sizing its height. In the future, the <ApiLink type="InputGroup" /> component will expose an option that allows custom sizing, and then the <ApiLink type="SimpleCombo" /> will use the same functionality for proper styling and better consistency.
 - When the simple combobox is bound to an array of primitive data which contains `undefined` (i.e. `[ undefined, ...]`), `undefined` is not displayed in the dropdown. When it is bound to an array of complex data (i.e. objects) and the value used for `valueKey` is `undefined`, the item will be displayed in the dropdown, but cannot be selected.
 - When the simple combobox is bound via `ngModel` and is marked as `required`, `null`, `undefined` and `''` values cannot be selected.
 - When the simple combobox is bound to a remote service and there is a predefined selection, its input will remain blank until the requested data is loaded.

docs/angular/src/content/jp/components/simple-combo.mdx

@@ -386,7 +386,6 @@ $custom-drop-down-theme: drop-down-theme(
 
 ## 既知の問題
 
-- Simple ComboBox には、高さのサイズを設定するための入力がありません。将来、<ApiLink type="InputGroup" /> コンポーネントは、カスタムのサイズ変更オプションを公開し、<ApiLink type="SimpleCombo" /> は適切なスタイル設定と外観の統一に同じ機能を使用します。
 - シンプルなコンボボックスが `undefined` (例: `[ undefined, ...]`) を含むプリミティブ データの配列にバインドされる場合、`undefined` はドロップダウンに表示されません。複合データ (オブジェクトなど) の配列にバインドされ、`valueKey` に使用される値が `undefined` の場合、項目はドロップダウンに表示されますが、選択はできません。
 - シンプルなコンボボックスが `ngModel` でバインドされ、`required` とマークされている場合、`null`、`undefined`、`''` の値は選択できません。
 - シンプルなコンボボックスがリモート サービスにバインドされ、定義済みの選択がある場合、要求されたデータが読み込まれるまでその入力は空白のままになります。

docs/angular/src/content/kr/components/simple-combo.md

@@ -329,7 +329,9 @@ The last step is to include the component's theme.
 
 ## Known Issues
 
-- The simple combobox does not have input for sizing its height. In the future, the [IgxInputGroup]({environment:angularApiUrl}/classes/igxinputgroupcomponent.html) component will expose an option that allows custom sizing, and then the [IgxSimpleCombo]({environment:angularApiUrl}/classes/igxsimplecombocomponent.html) will use the same functionality for proper styling and better consistency.
+- When the simple combobox is bound to an array of primitive data which contains `undefined` (i.e. `[ undefined, ...]`), `undefined` is not displayed in the dropdown. When it is bound to an array of complex data (i.e. objects) and the value used for `valueKey` is `undefined`, the item will be displayed in the dropdown, but cannot be selected.
+- When the simple combobox is bound via `ngModel` and is marked as `required`, `null`, `undefined` and `''` values cannot be selected.
+- When the simple combobox is bound to a remote service and there is a predefined selection, its input will remain blank until the requested data is loaded.
 
 > [!NOTE]
 > The simple combobox uses `igxForOf` directive internally hence all `igxForOf` limitations are valid for the simple combobox. For more details see [igxForOf Known Issues](for-of.md#known-limitations) section.