diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index ced49b7b22..97e3a05107 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -242,10 +242,6 @@ class Tab < OpenStruct
     super || DevelopmentTools.default_compiler
   end
 
-  def homebrew_tag
-    homebrew_version.sub(/\-\d+\-g([a-f0-9]+)(?:\-dirty)?\Z/, "")
-  end
-
   def parsed_homebrew_version
     return Version::NULL if homebrew_version.nil?
     Version.new(homebrew_version)
diff --git a/Library/Homebrew/test/tab_test.rb b/Library/Homebrew/test/tab_test.rb
index bc0be85764..8ba36393bf 100644
--- a/Library/Homebrew/test/tab_test.rb
+++ b/Library/Homebrew/test/tab_test.rb
@@ -69,17 +69,6 @@ class TabTests < Homebrew::TestCase
     assert_predicate tab, :universal?
   end
 
-  def test_homebrew_tag
-    tab = Tab.new(homebrew_version: "1.2.3")
-    assert_equal "1.2.3", tab.homebrew_tag
-
-    tab.homebrew_version = "1.2.4-567-g12789abdf"
-    assert_equal "1.2.4", tab.homebrew_tag
-
-    tab.homebrew_version = "2.0.0-134-gabcdefabc-dirty"
-    assert_equal "2.0.0", tab.homebrew_tag
-  end
-
   def test_parsed_homebrew_version
     tab = Tab.new
     assert_same Version::NULL, tab.parsed_homebrew_version