Remove logic to handle FAB visibility.

Signed-off-by: ZetaTom <70907959+ZetaTom@users.noreply.github.com>

Author: ZetaTom

app/src/main/java/com/owncloud/android/ui/fragment/FileDetailFragment.java

@@ -857,12 +857,6 @@ public void showHideFragmentView(boolean isFragmentReplaced) {
         binding.tabLayout.setVisibility(isFragmentReplaced ? View.GONE : View.VISIBLE);
         binding.pager.setVisibility(isFragmentReplaced ? View.GONE : View.VISIBLE);
         binding.sharingFrameContainer.setVisibility(isFragmentReplaced ? View.VISIBLE : View.GONE);
-        FloatingActionButton mFabMain = requireActivity().findViewById(R.id.fab_main);
-        if (isFragmentReplaced) {
-            mFabMain.hide();
-        } else {
-            mFabMain.show();
-        }
     }
 
     /**