Revert "php70-pdo-pgsql: update 7.0.0-beta.1 bottle."
Revert "php70-pdo-pgsql: update 7.0.0-beta.1 bottle."

This reverts commit e49eda2de0a9da359107ba3f825c47811f6c669e.

dguyon/homebrew-php,mkalkbrenner/homebrew-php,TomK/homebrew-php,ablyler/homebrew-php,philcook/homebrew-php