hw/tpm: remove break after g_assert_not_reached()

This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different
assertion mechanisms.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20240919044641.386068-21-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

hw/tpm/tpm_spapr.c

@@ -206,7 +206,6 @@ static int tpm_spapr_do_crq(struct SpaprVioDevice *dev, uint8_t *crq_data)
                 break;
             default:
                 g_assert_not_reached();
-                break;
             }
             trace_tpm_spapr_do_crq_get_version(be32_to_cpu(local_crq.data));
             spapr_tpm_send_crq(dev, &local_crq);