Move clear API out of proposed

Fixes #61592

src/vs/vscode.d.ts

@@ -4713,6 +4713,11 @@ declare module 'vscode' {
 		 * Controls whether to show the "Terminal will be reused by tasks, press any key to close it" message.
 		 */
 		showReuseMessage?: boolean;
+
+		/**
+		 * Controls whether the terminal is cleared before executing the task.
+		 */
+		clear?: boolean;
 	}
 
 	/**

src/vs/vscode.proposed.d.ts

@@ -1246,17 +1246,6 @@ declare module 'vscode' {
 	//#endregion
 
 	//#region Task
-	/**
-	 * Controls how the task is presented in the UI.
-	 */
-	export interface TaskPresentationOptions {
-		/**
-		 * Controls whether the terminal is cleared before executing the task.
-		 */
-		clear?: boolean;
-	}
-
-
 	export enum RerunBehavior {
 		reevaluate = 1,
 		useEvaluated = 2,