Update docs/pages.jl

Author: ChrisRackauckas

docs/pages.jl

@@ -10,7 +10,6 @@ pages = [
         "interfaces/Solutions.md",
         "interfaces/Init_Solve.md",
         "interfaces/Ensembles.md",
-        "interfaces/ClockSystem.md",
         "interfaces/Common_Keywords.md",
         "interfaces/Differentiation.md",
         "interfaces/PDE.md"],