Fix delete friend response

Sources/src/main/kotlin/allin/data/postgres/PostgresFriendDataSource.kt

@@ -53,8 +53,10 @@ class PostgresFriendDataSource(private val database: Database) : FriendDataSourc
 
 
     override fun deleteFriend(senderId: String, receiverId: String): Boolean {
-        database.friends.removeIf { (it.sender eq receiverId) and (it.receiver eq senderId) }
-        return database.friends.removeIf { (it.sender eq senderId) and (it.receiver eq receiverId) } > 0
+        val result = database.friends.removeIf { (it.sender eq receiverId) and (it.receiver eq senderId) } +
+                database.friends.removeIf { (it.sender eq senderId) and (it.receiver eq receiverId) }
+
+        return result > 0
     }
 
     override fun isFriend(firstUser: String, secondUser: String) =

Sources/src/main/kotlin/allin/routing/friendRouter.kt

@@ -154,12 +154,10 @@ fun Application.friendRouter() {
                     if (user == null || userFriend == null) {
                         call.respond(HttpStatusCode.Conflict, ApiMessage.USER_NOT_FOUND)
                     } else {
-                        val friendlist = friendDataSource.getFriendFromUserId(user.id)
-                        if (!friendlist.map { it.id }.contains(userFriend.id)) {
-                            call.respond(HttpStatusCode.Conflict, ApiMessage.FRIENDS_DOESNT_EXISTS)
-                        } else {
-                            friendDataSource.deleteFriend(user.id, userFriend.id)
+                        if (friendDataSource.deleteFriend(user.id, userFriend.id)) {
                             call.respond(HttpStatusCode.Created, usernameFriend)
+                        } else {
+                            call.respond(HttpStatusCode.Conflict, ApiMessage.FRIENDS_DOESNT_EXISTS)
                         }
                     }
                 }