I finally figured out on my own to get rid of the my account dropdown menu for touch devices. I’m just posting my results here if anyone else is trying to remove a broken menu that shouldn’t even be part of the theme to begin with. Here is the CSS:
@media(max-width:991px){.wpb_custom_7f1500734455b1eeef6f72f11d417d71.account-dropdown > li.has-sub > a::after {
display: none !important;
}}
@media(max-width:991px){#header .porto-narrow-sub-menu {
display: none !important;
}}
