Remove const

Author: ufechner7

examples/reel_out_4p_torque_control.jl

@@ -15,7 +15,7 @@ set::Settings = deepcopy(load_settings("system.yaml"))
 dt::Float64 = 0.05/3
 set.solver="DFBDF" # IDA or DFBDF
 STEPS = 600*3
-const PLOT = true
+PLOT = true
 FRONT_VIEW = false
 ZOOM = true
 PRINT = false