Remove redundant cast

mitiq/interface/mitiq_qibo/conversions.py

@@ -452,7 +452,7 @@ def _parse_qasm_modified(qasm_code: str) -> Tuple[int, List[Tuple[str, List[int]
                 if registers[register] is not None:
                     cast(Dict[str, Dict[int, int]],registers)
                     cast(Dict[int, int], registers[register])
-                    registers[register][idx] = cast(int,qubits[qubit])
+                    registers[register][idx] = qubits[qubit]
             else:
                 registers[register] = {idx: qubits[qubit]}
                 gate_list.append(("M", [0], register))