Remove unused method and associated test fixtures

Library/Homebrew/exceptions.rb

@@ -164,10 +164,6 @@ class BuildError < Homebrew::InstallationError
     super formula, "Failed executing: #{command} #{args}"
   end
 
-  def was_running_configure?
-    @command == './configure'
-  end
-
   def issues
     @issues ||= fetch_issues
   end

Library/Homebrew/test/test_formula_install.rb

@@ -14,20 +14,6 @@ class TestScriptFileFormula < ScriptFileFormula
 end
 
 
-class ConfigureTests < Test::Unit::TestCase
-  def teardown
-    HOMEBREW_CACHE.rmtree
-  end
-
-  def test_detect_failed_configure
-    f = ConfigureFails.new
-    shutup { f.brew { f.install } }
-  rescue BuildError => e
-    assert e.was_running_configure?
-  end
-end
-
-
 class InstallTests < Test::Unit::TestCase
   def teardown
     HOMEBREW_CACHE.rmtree

Library/Homebrew/test/testball.rb

@@ -13,17 +13,3 @@ class TestBall < Formula
     prefix.install "libexec"
   end
 end
-
-class ConfigureFails < Formula
-  url "file:///#{TEST_FOLDER}/tarballs/configure_fails.tar.gz"
-  version '1.0.0'
-  sha1 'b36c65e5de86efef1b3a7e9cf78a98c186b400b3'
-
-  def initialize(name="configure_fails", path=nil)
-    super
-  end
-
-  def install
-    system "./configure"
-  end
-end