Revert "Merge branch 'master' of https://github.com/zlei/flappy-pipe"

This reverts commit eed7647b78921e665870742e7cbd4f760ce27eac, reversing
changes made to 95d76059a3299963004563cb5bd3fd0e724b88f8.
Revert 1b31b1c..b8dd4be

This rolls back to commit 1b31b1cba75f1642550960210f64fe00905dba15.