Remove deprecated IntegerComparator.num_ancilla_qubits (Qiskit#11306)

* remove deprecated IntegerComparator.num_ancilla_qubits * reno
FabianBrings · Nov 27, 2023 · 357983e · 357983e
1 parent 038e7f2
commit 357983e
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diff --git a/qiskit/circuit/library/arithmetic/integer_comparator.py b/qiskit/circuit/library/arithmetic/integer_comparator.py
@@ -14,7 +14,6 @@
 """Integer Comparator."""
 
 from __future__ import annotations
-import warnings
 import numpy as np
 
 from qiskit.circuit import QuantumCircuit, QuantumRegister, AncillaRegister
@@ -100,16 +99,6 @@ def geq(self, geq: bool) -> None:
             self._invalidate()
             self._geq = geq
 
-    @property
-    def num_ancilla_qubits(self):
-        """Deprecated. Use num_ancillas instead."""
-        warnings.warn(
-            "The IntegerComparator.num_ancilla_qubits property is deprecated "
-            "as of 0.16.0. It will be removed no earlier than 3 months after the release "
-            "date. You should use the num_ancillas property instead."
-        )
-        return self.num_ancillas
-
     @property
     def num_state_qubits(self) -> int:
         """The number of qubits encoding the state for the comparison.

diff --git a/releasenotes/notes/5079_IntegerComparator_num_ancilla_qubits-bd1cff3366c345ae.yaml b/releasenotes/notes/5079_IntegerComparator_num_ancilla_qubits-bd1cff3366c345ae.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    The property ``IntegerComparator.num_ancilla_qubits`` is removed, which was 
+    deprecated in Qiskit 0.23 (released on Oct 2020). Its functionality is fully covered
+    by :attr:`.IntegerComparator.num_ancilla`.