Mark pineview-bin as not important.
Mark pineview-bin as not important.

The pineview-bin builder is about to be removed and has
already been taken down. So we should mark it as no longer
being important for now.

BUG=none
TEST=Unit tests.

Change-Id: I444eb9d9b978bb9c62ccb60e6b75aebfa6f60f83
Reviewed-on: http://gerrit.chromium.org/gerrit/5279
Reviewed-by: Ken Mixter <feb6aa3e7f1e44c9811411c1ed2accffd28a2d10@chromium.org>
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

chadversary/chromiumos.chromite,zhang0137/chromite,coreos/chromite,zhang0137/chromite,coreos/chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,zhang0137/chromite,coreos/chromite