hide FAB in copy/move folder chooser

res/layout/list_fragment.xml

@@ -99,7 +99,8 @@
         fab:fab_labelStyle="@style/menu_labels_style"
         android:layout_marginBottom="@dimen/standard_margin"
         android:layout_marginRight="@dimen/standard_margin"
-        android:layout_marginEnd="@dimen/standard_margin">
+        android:layout_marginEnd="@dimen/standard_margin"
+        android:visibility="gone">
 
         <com.getbase.floatingactionbutton.FloatingActionButton
             android:id="@+id/fab_upload"

src/com/owncloud/android/ui/activity/FolderPickerActivity.java

@@ -154,6 +154,7 @@ public class FolderPickerActivity extends FileActivity implements FileFragment.C
         Bundle args = new Bundle();
         args.putBoolean(OCFileListFragment.ARG_JUST_FOLDERS, true);
         args.putBoolean(OCFileListFragment.ARG_ALLOW_CONTEXTUAL_ACTIONS, false);
+        args.putBoolean(OCFileListFragment.ARG_HIDE_FAB, true);
         listOfFiles.setArguments(args);
         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.add(R.id.fragment_container, listOfFiles, TAG_LIST_OF_FOLDERS);