When bisecting using downloaded js shells, we do not need a Mercurial m-c repo available, so remove the call to getRepoHashAndId.
When bisecting using downloaded js shells, we do not need a Mercurial m-c repo available, so remove the call to getRepoHashAndId.

nth10sd/funfuzz,MozillaSecurity/funfuzz,MozillaSecurity/funfuzz,nth10sd/funfuzz,nth10sd/funfuzz,MozillaSecurity/funfuzz