UPSTREAM: arm: remove unused restart trampoline

(cherry pick from commit fa18484d0947b976a769d15c83c50617493c81c1)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Bug: 9674955
Bug: 25773781
Change-Id: Ibe758adc615c20c6a89c053d7510a2cb02f07aa1
2 files changed