Revert "Merge pull request #8 from DeNA/compress_enabled_default"

This reverts commit f548c8782079b1e2db610a7d8cbd350e006207d4, reversing
changes made to 28c867c2c0c719190c393a6dbfaa08b75aee523b.
Merge pull request #9 from DeNA/revert_1.378

Revert "Merge pull request #8 from DeNA/compress_enabled_default"