libxml2@2.7: remove

Aliases/libxml2@2.9

@@ -1 +0,0 @@
-../Formula/libxml2.rb

Formula/libxml2@2.7.rb

@@ -1,55 +0,0 @@
-class Libxml2AT27 < Formula
-  desc "GNOME XML library"
-  homepage "http://xmlsoft.org"
-  url "http://xmlsoft.org/sources/libxml2-2.7.8.tar.gz"
-  mirror "ftp://xmlsoft.org/libxml2/libxml2-2.7.8.tar.gz"
-  sha256 "cda23bc9ebd26474ca8f3d67e7d1c4a1f1e7106364b690d822e009fdc3c417ec"
-
-  bottle do
-    cellar :any
-    sha256 "55d03510335c91e74428d1edeec9fe111e089189ee621cfbbd77c44dbd62c4ad" => :high_sierra
-    sha256 "66e8a7e3bba96c9eb7ae9b9f58626298167dfa7524a920bc925fcccaf8d8a9f3" => :sierra
-    sha256 "e162bd76f1ee1d35ccc3f0ab1ea961c3c3440bcf6a9006104bf15ccb8e5cf5df" => :el_capitan
-    sha256 "f555a3fe75c9bc5c2e9fabea9795d0b71c6baeae54822c752686fcbd65bc2fb8" => :yosemite
-  end
-
-  keg_only :versioned_formula
-
-  depends_on "python" => :optional
-
-  def install
-    system "./configure", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}",
-                          "--without-python"
-    system "make"
-    ENV.deparallelize
-    system "make", "install"
-
-    if build.with? "python"
-      cd "python" do
-        # We need to insert our include dir first
-        inreplace "setup.py", "includes_dir = [", "includes_dir = ['#{include}', '#{MacOS.sdk_path}/usr/include',"
-        system "python", "setup.py", "install", "--prefix=#{prefix}"
-      end
-    end
-  end
-
-  test do
-    (testpath/"test.c").write <<~EOS
-      #include <libxml/tree.h>
-
-      int main()
-      {
-        xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
-        xmlNodePtr root_node = xmlNewNode(NULL, BAD_CAST "root");
-        xmlDocSetRootElement(doc, root_node);
-        xmlFreeDoc(doc);
-        return 0;
-      }
-    EOS
-    args = `#{bin}/xml2-config --cflags --libs`.split
-    args += %w[test.c -o test]
-    system ENV.cc, *args
-    system "./test"
-  end
-end