remove TODOs

app/src/main/java/fr/iutlille/ctp_2025/MainActivity.java

@@ -35,12 +35,11 @@ public class MainActivity extends AppCompatActivity {
         @Override
         public void onBindViewHolder(@NonNull ParticipantViewHolder holder, int position) {
             Participant participant = model.getParticipant(position);
-            // TODO Q2
         }
 
         @Override
         public int getItemCount() {
-            return 0; // TODO Q2a
+            return 0;
         }
     }
     public class ParticipantViewHolder extends RecyclerView.ViewHolder {
@@ -70,7 +69,6 @@ public class MainActivity extends AppCompatActivity {
     }
     private void refresh() {
         model.computeBalance();
-        // TODO Q1
         ui.ParticipantList.getAdapter().notifyDataSetChanged();
     }
 }
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