server: remove unused avgColor attribute from types

packages/backend/src/models/entities/drive-file.ts

@@ -78,7 +78,7 @@ export class DriveFile {
 		default: {},
 		comment: 'The any properties of the DriveFile. For example, it includes image width/height.',
 	})
-	public properties: { width?: number; height?: number; orientation?: number; avgColor?: string };
+	public properties: { width?: number; height?: number; orientation?: number; };
 
 	@Column('boolean')
 	public storedInternal: boolean;

packages/backend/src/models/schema/drive-file.ts

@@ -60,11 +60,6 @@ export const packedDriveFileSchema = {
 					optional: true, nullable: false,
 					example: 8,
 				},
-				avgColor: {
-					type: 'string',
-					optional: true, nullable: false,
-					example: 'rgb(40,65,87)',
-				},
 			},
 		},
 		url: {

packages/backend/src/server/api/endpoints/admin/drive/show-file.ts

@@ -79,11 +79,6 @@ export const meta = {
 						optional: false, nullable: false,
 						example: 720,
 					},
-					avgColor: {
-						type: 'string',
-						optional: true, nullable: false,
-						example: 'rgb(40,65,87)',
-					},
 				},
 			},
 			storedInternal: {