test: drop rebase test
We assume that the mercurial rebases tests suite is strong enough now.
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d3f20770b86a31dba56ae7b252089e12b34702da 0.2.0
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9bbcd274689829d9239978236e16610688978233 0.4.0
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18a0d96ed559089edf90206c469f3f8c26681c64 0.7
1b2757c1bd918509184f6c1d06b2329a847e31b0 0.7
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5559e5a4b656978c592d364f242edc62369d7e84 1.0.2
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f9d305deeff3dba782e65faf4ef3fd1569995859 2.1.0