[None][fix] Remove MHC fused hidden-size guard #13611
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Signed-off-by: Mingyang Hao <mingyangHao@users.noreply.github.com>
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@coderabbitai summary
Description
hidden_size == FHC_HIDDENruntime guard inmhcFusedHcLaunchandmhcFusedHcAllInOneLaunch; the templated kernel already specializes onFHC_HIDDENso the check is redundant for the configurationswe ship and blocks valid call sites.
hc_mult == FHC_HC_MULTguard is kept.Test Coverage
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