BACKPORT: arm: don't call try_to_freeze() from do_signal()

(cherry pick from commit d9be5ea6f9b6a51535ccdd9881ffb3be2dbd48e9)

get_signal_to_deliver() will handle it itself

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Bug: 9674955
Bug: 25773781
Change-Id: I41055ca8db6b04c648f6f2c848cfb5973998ed4c
1 file changed