MINNEAPOLIS — Edina’s depth proved too much for Mayo on Wednesday as the Hornets beat the Spartans 5-2 in the state Class 2A boys tennis semifinals at the University of Minnesota’s Baseline Tennis Center. No. 2 seed Edina showed off all of that depth in doubles, where it swept its way to three straight-set wins. The loss put No. 3 Mayo in the third-place match where it beat No. 4 seed Mounds View 4-3. Mounds View lost 7-0 in the other semifinal …