Revert "pétouille"

This reverts commit 76f34cc003ace10702774a2d335bd55284b486d1.
Revert "apply caching on the proxy based on https://github.com/stefanhoth/php-simple-proxy/commit/f80e0be00546fd4fd737184c998c1f9ac2434521"

This reverts commit 69b5eedcb469fb4265050dc1af0747926294182e.