Simplify QubitizationWalkOperator: remove specializations for control/adjoint and use defaults instead
#1481
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qualtran/bloqs/chemistry/hubbard_model/qubitization/select_hubbard.py
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towards #1266
QubitizationWalkOperatordoes not need a specialized control, it is handled automatically by the select and reflect ops it decomposes to. The bloq/cirq diagrams also match the default inControlled.TwoBitSwap,ZGate,YGate.AdjointWithSpecializedCtrlmetabloq, which pushes single bit controls to the subbloq. This fixesAdjointprevents specialized control bloqs from being constructed #1480SelectHubbard. Also fix a bug in it: the decomp does not account forcontrol_val=0, so use default for that case.