Minor cleanup of get_asides
Minor cleanup of get_asides

lovehhf/XBlock,edx-solutions/XBlock,EDUlib/XBlock,edx-solutions/XBlock,nagyistoce/edx-XBlock,nagyistoce/edx-XBlock,mitodl/XBlock,edx/XBlock,4eek/XBlock,edx/XBlock,EDUlib/XBlock,mitodl/XBlock,4eek/XBlock,lovehhf/XBlock