remove unnecessary tap_args

It's now handled by Tap.fetch

1 files changed, 3 insertions, 2 deletions

diff --git a/Library/Homebrew/cmd/untap.rb b/Library/Homebrew/cmd/untap.rb
index 2d08ae8c7..8f14258f3 100644
--- a/Library/Homebrew/cmd/untap.rb
+++ b/Library/Homebrew/cmd/untap.rb
@@ -1,11 +1,12 @@
-require "cmd/tap" # for tap_args
+require "tap"
 
 module Homebrew
   def untap
     raise "Usage is `brew untap <tap-name>`" if ARGV.empty?
 
     ARGV.named.each do |tapname|
-      tap = Tap.fetch(*tap_args(tapname))
+      tap = Tap.fetch(tapname)
+      raise "Homebrew/homebrew is not allowed" if tap.core_formula_repository?
       tap.uninstall
     end
   end