David Pursehouse d94aaef39e sync: Correct imports of R_HEADS and HEAD
`R_HEADS` is imported twice, from both the git_refs and project
modules.

It is actually defined in git_refs, and in project it is imported
from there, so the import of `R_HEADS` from project in the sync
module is redundant.  Remove it.

`HEAD` is imported from project, but like `R_HEADS` it is actually
defined in git_refs.  Import it from git_refs instead.

Change-Id: I8e2b0217d0d9f9f4ee5ef5b8cd0b026174ac52f4
2012-09-07 10:17:00 +02:00
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