remove ruby version from Gemfile
parentheses coz this aint perl
Revert "Allow ignore director UUID check"

We decided that this is a nice feature but the implementation in
6fd9074a is not desirable: it places the check entirely on the client
side.

[#55726752]

This reverts commit 6fd9074ec356e953eecf81e964364866770d5b2e.

Signed-off-by: Jesse Zhang <jz@pivotallabs.com>