kexec_core: Drop redundant pm_restore_gfp_mask() call

Drop the direct pm_restore_gfp_mask() call from the KEXEC_JUMP flow in
kernel_kexec() because it is redundant.  Namely, dpm_resume_end()
called beforehand in the same code path invokes that function and
it is sufficient to invoke it once.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/1949230.tdWV9SEqCh@rjwysocki.net


[ rjw: Rebase after fixing up previous changes ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>