Merge pull request #1667 from SciML/controlsystem

remove ControlSystem

Author: YingboMa

docs/pages.jl

@@ -8,7 +8,6 @@ pages = [
                                          "tutorials/nonlinear.md",
                                          "tutorials/optimization.md",
                                          "tutorials/stochastic_diffeq.md",
-                                         "tutorials/nonlinear_optimal_control.md",
                                          "tutorials/parameter_identifiability.md"],
     "ModelingToolkitize Tutorials" => Any["mtkitize_tutorials/modelingtoolkitize.md",
                                           "mtkitize_tutorials/modelingtoolkitize_index_reduction.md",
@@ -25,7 +24,6 @@ pages = [
                           "systems/JumpSystem.md",
                           "systems/NonlinearSystem.md",
                           "systems/OptimizationSystem.md",
-                          "systems/ControlSystem.md",
                           "systems/PDESystem.md"],
     "comparison.md",
     "internals.md",

docs/src/systems/ControlSystem.md

@@ -136,8 +136,6 @@ include("systems/nonlinear/modelingtoolkitize.jl")
 
 include("systems/optimization/optimizationsystem.jl")
 
-include("systems/control/controlsystem.jl")
-
 include("systems/pde/pdesystem.jl")
 
 include("systems/sparsematrixclil.jl")
@@ -172,13 +170,11 @@ export AutoModelingToolkit
 export SteadyStateProblem, SteadyStateProblemExpr
 export JumpProblem, DiscreteProblem
 export NonlinearSystem, OptimizationSystem
-export ControlSystem
 export alias_elimination, flatten
 export connect, @connector, Connection, Flow, Stream, instream
 export isinput, isoutput, getbounds, hasbounds, isdisturbance, istunable, getdist, hasdist,
        tunable_parameters, isirreducible
 export ode_order_lowering, dae_order_lowering, liouville_transform
-export runge_kutta_discretize
 export PDESystem
 export Differential, expand_derivatives, @derivatives
 export Equation, ConstrainedEquation