yasm: always build python extension

Closes #13889.

Signed-off-by: Tim D. Smith <[email protected]>

Formula/yasm.rb

@@ -3,6 +3,7 @@ class Yasm < Formula
   homepage "http://yasm.tortall.net/"
   url "https://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz"
   sha256 "3dce6601b495f5b3d45b59f7d2492a340ee7e84b5beca17e48f862502bd5603f"
+  revision 1
 
   bottle do
     cellar :any_skip_relocation
@@ -20,21 +21,17 @@ class Yasm < Formula
     depends_on "gettext"
   end
 
-  deprecated_option "with-python" => "with-cython"
-
-  depends_on "cython" => [:build, :optional]
+  depends_on "cython" => :build
 
   def install
     args = %W[
       --disable-debug
       --prefix=#{prefix}
     ]
 
-    if build.with? "cython"
-      ENV.prepend_path "PYTHONPATH", Formula["cython"].opt_libexec/"lib/python2.7/site-packages"
-      args << "--enable-python"
-      args << "--enable-python-bindings"
-    end
+    ENV.prepend_path "PYTHONPATH", Formula["cython"].opt_libexec/"lib/python2.7/site-packages"
+    args << "--enable-python"
+    args << "--enable-python-bindings"
 
     # https://github.com/Homebrew/legacy-homebrew/pull/19593
     ENV.deparallelize