Remove mysteriously appearing unused import

Somehow an unused-import line mysteriously exists in some
branches but not others. Looking at git log, we can't
figure out how this happened, it was removed, but then just
suddenly exists at some later point without an associated
commit to add it.

Anyways, to reduce merge conflicts, try removing it again

Bug: N/A
Test: N/A
Change-Id: I67a567f512656cb18a23bfadd0611621369d48cb