medicalHistory: deletion when patient is deleted

backend/API/Middlewares/ApiKeyValidationMiddleware.cs

@@ -2,15 +2,11 @@
 
 namespace API.Middlewares;
 
-using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Configuration;
-using System.Threading.Tasks;
-
 public class ApiKeyMiddleware
 {
-    private readonly RequestDelegate _next;
     private const string API_KEY_HEADER_NAME = "ApiKey";
     private readonly string _apiKey;
+    private readonly RequestDelegate _next;
 
     public ApiKeyMiddleware(RequestDelegate next, IConfiguration configuration)
     {