Fix an unneeded std::move in //third_party/libaddressinput.

std::move is not needed when returning local variables. This wasn't
caught in the initial commit because only Windows builds //third_party
with -Wall.

BUG=82385
TBR=thakis@chromium.org

Review URL: https://codereview.chromium.org/1549373004

Cr-Commit-Position: refs/heads/master@{#367043}
1 file changed