How to remove course start date from Course cards while the new course card is enabled in Edwiser RemUI settings.

#course-archive-main-container .edw-course-card-grid .date, .profile-cards-wrapper .edw-course-card-grid .date {
display:none;
}

---

If you wish to change the color instead use the following CSS:

#course-archive-main-container .edw-course-card-grid .date, .profile-cards-wrapper .edw-course-card-grid .date{
background-color:#e8942f;
}