svnwrap: remove dead code Some member functions of SubversionRepo were unused, and removing them frees other wrappers from adding possibly incorrect implementations of them. Two methods, `tags_at_rev' and `_get_copy_source' were completely unused and could easily be removed. Another two methods, `branches' and `tags' had explicit tests for them but weren't used in the code proper; they were removed too. The START property was unnecessary and could be removed with a tiny refactoring. No functionality change.

import test_util

import unittest

class TestFetchBinaryFiles(test_util.TestBase):
    def test_binaryfiles(self, stupid=False):
        repo = self._load_fixture_and_fetch('binaryfiles.svndump', stupid=stupid)
        self.assertEqual('cce7fe400d8d', str(repo['tip']))

    def test_binaryfiles_stupid(self):
        self.test_binaryfiles(True)

def suite():
    all = [unittest.TestLoader().loadTestsFromTestCase(TestFetchBinaryFiles),
          ]
    return unittest.TestSuite(all)