remove clifford + T section

doc/releases/changelog-dev.md

@@ -4,39 +4,7 @@
 
 <h3>New features since last release</h3>
 
-<h4>Decompose circuits into the Clifford+T gateset 🧩</h4>
-
-* A new transform called `clifford_t_decomposition` is available, which decomposes
-  circuits into the Clifford+T gate set. 
-  [(#ABCD)]()
-
-  The Clifford+T universal gate set — `Hadamard`, `S`, `CNOT` and `T` — is paramount
-  to the implementation of many fault-tolerant protocols on quantum computers. With 
-  the new `clifford_t_decomposition` transform, circuits can be decomposed into 
-  a basis consisting of Clifford, `RZ` and `GlobalPhase` operations. Here, Clifford 
-  gates include `Identity`, `PauliX`, `PauliY`, `PauliZ`, `SX`, `S`, `Hadamard`, 
-  `CNOT`, `CY`, `CZ`, `SWAP` and `ISWAP`. 
-
-  ```python
-  dev = qml.device("default.qubit", wires=2)
-
-  def circuit():
-      qml.SingleExcitation(0.2, [1, 0])
-      return qml.state()
-
-  clifford_circuit = qml.QNode(qml.transforms.clifford_t_decomposition(circuit), dev)
-  print(qml.draw(clifford_circuit)())
-  ```
-
-  ```pycon
-  0: ──RZ(-2.36)──H────╭●──S†─────────H──RZ(0.10)──H─╭●──S──────────H──S──T──GlobalPhase(-2.36)─┤
-  1: ──RZ(-0.79)──H──S─╰X──RZ(-0.10)─────────────────╰X──RZ(-1.57)──H──T─────GlobalPhase(-2.36)─┤
-  ```
-
-  `RZ` gates are approximated in the Clifford+T basis using the method 
-  described in [Ross and Selinger (2016)](https://arxiv.org/abs/1403.2975). The 
-  `epsilon` argument in `clifford_t_decomposition` allows for the error in approximating
-  `RZ` gates to be adjusted.
+<h4></h4>
 
 <h4>Postselection and statistics in mid-circuit measurements 📌</h4>