remove unused DTO

server/apps/immich/src/api-v1/asset/dto/asset-file-upload.dto.ts

@@ -1,8 +0,0 @@
-import { ApiProperty } from '@nestjs/swagger';
-import { IsNotEmpty } from 'class-validator';
-
-export class AssetFileUploadDto {
-  @IsNotEmpty()
-  @ApiProperty({ type: 'string', format: 'binary' })
-  assetData!: any;
-}