Remove Homebrew formula file

ports/Homebrew/README.md

@@ -1,15 +0,0 @@
-Homebrew formula for libzt/libztcore
-======
-
-This formula script is only here for archival purposes. To install `libzt` and `libztcore` via Homebrew use:
-
-```
-brew tap zerotier/libzt
-brew install libzt
-```
-
-Once accepted into Homebrew core this will be shortened to:
-
-```
-brew install libzt
-```

ports/Homebrew/libzt.rb

@@ -1,58 +0,0 @@
-class Libzt < Formula
-  desc "ZeroTier: libzt -- An encrypted P2P networking library for applications"
-  homepage "https://www.zerotier.com"
-
-  version "1.3.0"
-
-  stable do
-    url "https://github.com/zerotier/libzt.git", :branch => "master", :revision => "3d1159882117278fcb5fabb623bd62175b6c7e6c"
-  end
-
-  bottle do
-    root_url "https://download.zerotier.com/dist/homebrew"
-    cellar :any
-    sha256 "e1ac8425fd0ea510c7db734af8d6c41cd3650b12f66a571f9d818c0121422eee" => :mojave
-  end
-
-  devel do
-    version "1.3.1"
-    url "https://github.com/zerotier/libzt.git", :branch => "dev"
-  end
-
-  head do
-    url "https://github.com/zerotier/libzt.git"
-  end
-
-  depends_on "cmake" => :build
-  depends_on "make" => :build
-
-  def install
-    system "make", "update"
-    system "cmake", ".", *std_cmake_args
-    system "cmake", "--build", "."
-    system "make", "install"
-    cp "LICENSE.txt", "#{prefix}/LICENSE"
-  end
-
-  def caveats
-    <<~EOS
-      Visit https://my.zerotier.com to create virtual networks and authorize devices.
-      Visit https://www.zerotier.com/manual.shtml to learn more about how ZeroTier works.
-      Visit https://github.com/zerotier/ZeroTierOne/tree/master/controller to learn how to run your own network controller (advanced).
-    EOS
-  end
-
-  test do
-    # Writes a simple test program to test.cpp which calls a library function. The expected output of this
-    # function is -2. This test verifies the following:
-    # - The library was installed correctly
-    # - The library was linked correctly
-    # - Library code executes successfully and sends the proper error code to the test program
-    (testpath/"test.cpp").write <<-EOS
-      #include<cstdlib>\n#include<ZeroTier.h>\nint main(){return zts_socket(0,0,0)!=-2;}
-    EOS
-
-    system ENV.cc, "-v", "test.cpp", "-o", "test", "-L#{lib}/Release", "-lzt"
-    system "./test"
-  end
-end