chore: remove outdated exports

Author: AayushSabharwal

src/ModelingToolkit.jl

@@ -303,7 +303,7 @@ export Differential, expand_derivatives, @derivatives
 export Equation, ConstrainedEquation
 export Term, Sym
 export SymScope, LocalScope, ParentScope, GlobalScope
-export independent_variable, equations, controls, observed, full_equations, jumps, cost,
+export independent_variable, equations, observed, full_equations, jumps, cost,
        brownians
 export initialization_equations, guesses, defaults, parameter_dependencies, hierarchy
 export mtkcompile, expand_connections, linearize, linearization_function,
@@ -316,7 +316,6 @@ export calculate_jacobian, generate_jacobian, generate_rhs, generate_custom_func
 export calculate_control_jacobian, generate_control_jacobian
 export calculate_tgrad, generate_tgrad
 export generate_cost, calculate_cost_gradient, generate_cost_gradient
-export calculate_factorized_W
 export calculate_cost_hessian, generate_cost_hessian
 export calculate_massmatrix, generate_diffusion_function
 export stochastic_integral_transform

src/structural_transformation/StructuralTransformations.jl

@@ -57,7 +57,6 @@ using DocStringExtensions
 
 export tearing, partial_state_selection, dae_index_lowering, check_consistency
 export dummy_derivative
-export build_observed_function, ODAEProblem
 export sorted_incidence_matrix,
        pantelides!, pantelides_reassemble, tearing_reassemble, find_solvables!,
        linear_subsys_adjmat!