fix: remove duplicate KiteViewers import in parking_4p example

Author: Copilot

examples/parking_4p.jl

@@ -10,7 +10,6 @@ if ! ("MakieControlPlots" ∈ keys(Pkg.project().dependencies))
 end
 using Timers; tic()
 
-using KiteViewers
 using KiteViewers, MakieControlPlots, Rotations
 using KiteUtils: Settings, load_settings
 using KitePodModels: KCU