diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index 40f74f4cdceb1bce3346b05bfc30018becd88b7e..0d6cb04ac36a91107fee8b1f8b8f8838d313402f 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -242,24 +242,6 @@ def __check_subdir_access base
   end
 end
 
-def check_access_usr_local
-  return unless HOMEBREW_PREFIX.to_s == '/usr/local'
-
-  unless Pathname('/usr/local').writable?
-    puts <<-EOS.undent
-    The /usr/local directory is not writable.
-
-    Even if this folder was writable when you installed Homebrew, other
-    software may change permissions on this folder. Some versions of the
-    "InstantOn" component of Airfoil are known to do this.
-
-    You should probably change the ownership and permissions of /usr/local
-    back to your user account.
-
-    EOS
-  end
-end
-
 def check_access_share_locale
   __check_subdir_access 'share/locale'
 end
@@ -750,7 +732,6 @@ module Homebrew extend self
       check_for_other_package_managers
       check_for_x11
       check_for_nonstandard_x11
-      check_access_usr_local
       check_access_include
       check_access_etc
       check_access_share