Remove unused guard in canonical_name

Closes Homebrew/homebrew#20718.

1 files changed, 0 insertions, 2 deletions

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index e8d045ff5..3ad91ac8b 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -355,8 +355,6 @@ class Formula
   end
 
   def self.canonical_name name
-    name = name.to_s if name.kind_of? Pathname
-
     # if name includes a '/', it may be a tap reference, path, or URL
     if name.include? "/"
       if name =~ %r{(.+)/(.+)/(.+)}