diff --git a/packages/backend/src/misc/schema.ts b/packages/backend/src/misc/schema.ts
index 9b75f9fb5c..6e03d30d91 100644
--- a/packages/backend/src/misc/schema.ts
+++ b/packages/backend/src/misc/schema.ts
@@ -31,7 +31,6 @@ import { packedQueueCountSchema } from "@/models/schema/queue.js";
 import { packedGalleryPostSchema } from "@/models/schema/gallery-post.js";
 import { packedEmojiSchema } from "@/models/schema/emoji.js";
 import { packedNoteEdit } from "@/models/schema/note-edit.js";
-import { packedMetaExperimentalFeatures } from "@/models/schema/meta-experimental-features.js";
 
 export const refs = {
 	UserLite: packedUserLiteSchema,
@@ -66,7 +65,6 @@ export const refs = {
 	FederationInstance: packedFederationInstanceSchema,
 	GalleryPost: packedGalleryPostSchema,
 	Emoji: packedEmojiSchema,
-	MetaExperimentalFeatures: packedMetaExperimentalFeatures,
 };
 
 export type Packed<x extends keyof typeof refs> = SchemaType<typeof refs[x]>;
diff --git a/packages/backend/src/models/schema/meta-experimental-features.ts b/packages/backend/src/models/schema/meta-experimental-features.ts
deleted file mode 100644
index 45a9125193..0000000000
--- a/packages/backend/src/models/schema/meta-experimental-features.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-export const packedMetaExperimentalFeatures = {
-	type: "object",
-	properties: {
-		postEditing: {
-			type: "boolean",
-			optional: false,
-			nullable: false,
-			example: "false",
-		},
-	},
-} as const;
diff --git a/packages/calckey-js/src/entities.ts b/packages/calckey-js/src/entities.ts
index b03c9594ea..5a581a54cd 100644
--- a/packages/calckey-js/src/entities.ts
+++ b/packages/calckey-js/src/entities.ts
@@ -492,7 +492,3 @@ export type UserSorting =
 	| "+updatedAt"
 	| "-updatedAt";
 export type OriginType = "combined" | "local" | "remote";
-
-export type MetaExperimentalFeatures = {
-	postEditing: boolean;
-};