Revert "add sp26 staff hours (#662)" (#663)

This reverts commit b900d13.

Author: BNH440

configs/staff_hours.yaml

@@ -31,23 +31,15 @@ staff-hours:
   Tuesday:
      #- time: ['12:00', '14:00']
      #  staff: ["sbwilliams"]
-     - time: ['14:00', '16:00']
-       staff: ["ericgu"]
   Wednesday:
      #- time: ['11:00', '12:00']
      #  staff: ["sbwilliams"]
-     - time: ['12:00', '14:00']
-       staff: ["ericgu"]
   Thursday:
      #- time: ['12:00', '14:00']
      #  staff: ["sbwilliams"]
-     - time: ['14:00', '16:00']
-       staff: ["ericgu"]
   Friday:
      #- time: ['13:30', '15:30']
      #  staff: ["sbwilliams"]
-     - time: ['12:00', '14:00']
-       staff: ["ericgu"]
   Saturday:
   Sunday: