Revert "dual_variable and penalty_weight in Constraint message …

…for QUBO (#144)" (#149)

This reverts commit a0d0707 #144 

- The strategy for implementing QUBO and PUBO conversion has been
changed to use #146, which conflicts with #144

proto/ommx/v1/constraint.proto

@@ -42,19 +42,6 @@ message Constraint {
 
   // Detail human-readable description of the constraint.
   optional string description = 7;
-
-  // Temporal value for the Lagrangian dual variable of this constraint.
-  //
-  // This field is intended to use for storing the temporal dual variable value during the optimization process.
-  // This will be different from the optimal dual variable value.
-  //
-  // This field is also allowed to use for modified dual variable like appearing augmented Lagrangian method,
-  // which uses modified Lagrangian and thus the dual variable is also modified.
-  //
-  optional double dual_variable = 9;
-
-  // Weight of the penalty term for the constraint.
-  optional double penalty_weight = 10;
 }
 
 // A constraint evaluated with a state

python/ommx/ommx/v1/__init__.py

@@ -1210,14 +1210,6 @@ def add_parameters(self, parameters: dict[str, str]) -> Constraint:
         self.raw.parameters.update(parameters)
         return self
 
-    def set_dual_variable(self, value: float) -> Constraint:
-        self.raw.dual_variable = value
-        return self
-
-    def set_penalty_weight(self, value: float) -> Constraint:
-        self.raw.penalty_weight = value
-        return self
-
     @property
     def function(self) -> Function:
         return Function(self.raw.function)
@@ -1246,14 +1238,6 @@ def subscripts(self) -> list[int]:
     def parameters(self) -> dict[str, str]:
         return dict(self.raw.parameters)
 
-    @property
-    def dual_variable(self) -> float:
-        return self.raw.dual_variable
-
-    @property
-    def penalty_weight(self) -> float:
-        return self.raw.penalty_weight
-
     def __repr__(self) -> str:
         if self.raw.equality == Equality.EQUALITY_EQUAL_TO_ZERO:
             return f"Constraint({self.function.__repr__()} == 0)"

rust/ommx/src/mps/convert.rs

@@ -105,8 +105,6 @@ fn convert_constraints(mps: &Mps, name_id_map: &HashMap<ColumnName, u64>) -> Vec
             parameters: HashMap::new(),
             name: Some(row_name.0.clone()),
             description: None,
-            dual_variable: None,
-            penalty_weight: None,
         })
     }
     constrs