Remove *registry* from task 03's sample test

*registry* got removed from the conditions.
# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#	modified:   tasks/03/sample_test.clj
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#	tasks/02/solution.niki.clj