Revert "Bug 455656 - Error in performance results analysis, if more recent build"

This reverts commit 2afbdeb7378f9a8ddb28b2fb3358ff18d806c045.

Lost some changes, due to "crash", so reverting partial fix, and will
resubmit complete one.
Bug 455656 - Error in performance results analysis, if more recent build
exists in database.
Bug 455656 - Error in performance results analysis, if more recent build
exists in database.