Revert "feat: 個人宛てお知らせ機能 (#107)"

This reverts commit 7b1efd6b97.

packages/misskey-js/etc/misskey-js.api.md

@@ -31,8 +31,6 @@ type Announcement = {
     title: string;
     imageUrl: string | null;
     isRead?: boolean;
-    isPrivate: boolean;
-    closeDuration: number;
 };
 
 // @public (undocumented)
@@ -570,7 +568,6 @@ export type Endpoints = {
             withUnreads?: boolean;
             sinceId?: Announcement['id'];
             untilId?: Announcement['id'];
-            privateOnly?: boolean;
         };
         res: Announcement[];
     };

packages/misskey-js/src/api.types.ts

@@ -77,7 +77,7 @@ export type Endpoints = {
 	'admin/relays/remove': { req: TODO; res: TODO; };
 
 	// announcements
-	'announcements': { req: { limit?: number; withUnreads?: boolean; sinceId?: Announcement['id']; untilId?: Announcement['id']; privateOnly?: boolean; }; res: Announcement[]; };
+	'announcements': { req: { limit?: number; withUnreads?: boolean; sinceId?: Announcement['id']; untilId?: Announcement['id']; }; res: Announcement[]; };
 
 	// antennas
 	'antennas/create': { req: TODO; res: Antenna; };

packages/misskey-js/src/entities.ts

@@ -419,8 +419,6 @@ export type Announcement = {
 	title: string;
 	imageUrl: string | null;
 	isRead?: boolean;
-	isPrivate: boolean;
-	closeDuration: number;
 };
 
 export type Antenna = {