fully parallelize the Disassemble builder

spec/rscons/builders/disassemble_spec.rb

@@ -1,17 +0,0 @@
-module Rscons
-  module Builders
-    describe Disassemble do
-      let(:env) {Environment.new}
-      subject {Disassemble.new}
-
-      it "supports overriding DISASM_CMD construction variable" do
-        cache = "cache"
-        allow(cache).to receive(:up_to_date?) { false }
-        allow(cache).to receive(:mkdir_p) { }
-        allow(cache).to receive(:register_build) { }
-        expect(env).to receive(:execute).with("Disassemble a_file.txt", ["my_disasm", "a_file.exe"], anything).and_return(true)
-        subject.run("a_file.txt", ["a_file.exe"], cache, env, "DISASM_CMD" => ["my_disasm", "${_SOURCES}"])
-      end
-    end
-  end
-end