[Sync] Cleanup all tab sync enabling logic now that its on by default.

BUG=none
TEST=


Review URL: https://chromiumcodereview.appspot.com/10443046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139462 0039d316-1c4b-4281-b951-d872f2087c98
bool SyncTest::TearDownLocalTestServer() {
  if (test_server_handle_ != base::kNullProcessHandle) {
    EXPECT_TRUE(base::KillProcess(test_server_handle_, 0, false))
        << "Could not stop local test server.";
    base::CloseProcessHandle(test_server_handle_);
    test_server_handle_ = base::kNullProcessHandle;
  }
  return true;
}

bool SyncTest::TearDownLocalTestServer() {
  if (test_server_handle_ != base::kNullProcessHandle) {
    EXPECT_TRUE(base::KillProcess(test_server_handle_, 0, false))
        << "Could not stop local test server.";
    base::CloseProcessHandle(test_server_handle_);
    test_server_handle_ = base::kNullProcessHandle;
  }
  return true;
}
