Fix some bug and delete unnecessary code

app/src/main/java/com/capstone/foodify/Activity/MainActivity.java

@@ -367,6 +367,7 @@ public class MainActivity extends AppCompatActivity {
     @Override
     protected void onResume() {
         super.onResume();
+        HomeFragment.setNameUser();
         if (mRequestingLocationUpdates && checkPermission() && Common.CURRENT_LOCATION == null) {
             startLocationUpdates();
         }

app/src/main/java/com/capstone/foodify/Activity/OrderActivity.java

@@ -18,15 +18,12 @@ public class OrderActivity extends AppCompatActivity {
     ViewPager2 viewPager2;
     ViewPagerAdapter viewPagerAdapter;
     ImageView back_image;
-    public static Activity orderActivity;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_order);
 
-        orderActivity = this;
-
         //Init Component
         tabLayout = findViewById(R.id.tab_layout);
         viewPager2 = findViewById(R.id.view_pager);