Fix banner scaling in game list.

-In GameListAdapter.java, the existing scaling code is unnecessary and stops Android's built in scaling from doing its job.
-In gamelist...etc.xml, set the icon's width to 100 density-independent pixels (i.e. have android figure out how to make it the right size.)

Source/Android/res/layout/gamelist_folderbrowser_list_item.xml

@@ -7,8 +7,8 @@
 
     <ImageView
         android:id="@+id/ListItemIcon"
-        android:layout_width="wrap_content"
-        android:layout_height="fill_parent"
+        android:layout_width="100dp"
+        android:layout_height="wrap_content"
 
         tools:src="@drawable/ic_launcher"
 

Source/Android/src/org/dolphinemu/dolphinemu/gamelist/GameListAdapter.java

@@ -65,8 +65,6 @@ public final class GameListAdapter extends ArrayAdapter<GameListItem>
 			if (icon != null)
 			{
 				icon.setImageBitmap(item.getImage());
-				icon.getLayoutParams().width = (int) ((860 / context.getResources().getDisplayMetrics().density) + 0.5);
-				icon.getLayoutParams().height = (int)((340 / context.getResources().getDisplayMetrics().density) + 0.5);
 			}
 		}