tests: remove some unnecessary config Some of these tests were originally split from a single file that had (and used) these options, and some of the tests were later created by just mindlessly copypasting the same set of options that aren't applicable to the newly written tests. Things removed by this patch: - web section from tests that don't use hg serve and don't push - phases.publish from tests that don't exchange changesets between repos - diff section from tests that don't have any diffs - defaults section that sets the date The defaults section that only adds -d '0 0' to commands should no longer be necessary because run-tests.py sets devel.default-date='0 0' since 4.3, and all command in evolve should respect this config option.