Remove unused classes and methods

tests/components/test_static_lazy.py

@@ -14,7 +14,6 @@ from miplearn.components.static_lazy import StaticLazyConstraintsComponent
 from miplearn.features import (
     InstanceFeatures,
     Features,
-    Constraint,
     Sample,
     ConstraintFeatures,
 )

tests/solvers/test_internal_solver.py

@@ -35,22 +35,3 @@ def test_gurobi_pyomo_solver() -> None:
 
 def test_gurobi_solver() -> None:
     run_internal_solver_tests(GurobiSolver())
-
-
-def test_redundancy() -> None:
-    solver = GurobiSolver()
-    instance = solver.build_test_instance_redundancy()
-    solver.set_instance(instance)
-    stats = solver.solve_lp()
-    assert stats.lp_value == 1.0
-    constraints = solver.get_constraints()
-    assert constraints.names[0] == "c1"
-    assert constraints.slacks[0] == 0.0
-
-    solver.relax_constraints(["c1"])
-    stats = solver.solve_lp()
-    assert stats.lp_value == 2.0
-
-    solver.enforce_constraints(["c1"])
-    stats = solver.solve_lp()
-    assert stats.lp_value == 1.0

tests/test_features.py

@@ -5,14 +5,12 @@
 from miplearn.features import (
     FeaturesExtractor,
     InstanceFeatures,
-    Constraint,
     VariableFeatures,
     ConstraintFeatures,
 )
 from miplearn.solvers.gurobi import GurobiSolver
 from miplearn.solvers.tests import (
     assert_equals,
-    _round_constraints,
     _round,
 )