Fix: time_param_circSU2_100_build no longer needs to call _build. (Qiskit#13781)

- In the ASV test bench, a circuit construction test, `time_param_circSU2_100_build` which used to be implemented on top of a `BlueprintCircuit` no longer needs to call `_build`.

Author: raynelfss

test/benchmarks/circuit_construction.py

@@ -155,7 +155,6 @@ def time_param_circSU2_100_build(self, num_qubits):
         circuit with 1000 parameters
         """
         out = efficient_su2(num_qubits, reps=4, entanglement="circular")
-        out._build()
         return out