whpx: i386: remove SIPI trapping The implementation in Hyper-V works fine and the code currently present doesn't handle x2APIC correctly anyway, so remove it and use the implementation in Hyper-V. Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr> Link: https://lore.kernel.org/r/20260307181856.2209-10-mohamed@unpredictable.fr Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>