def delete_opcode(opcode)
      @chunks = @chunks.inject([]) do |list, chunk|
        list << chunk if chunk.opcode != opcode
        list
      end
      return self
    end
def delete_opcode(opcode)
      @chunks = @chunks.inject([]) do |list, chunk|
        list << chunk if chunk.opcode != opcode
        list
      end
      return self
    end
Removes all occurences of opcode. Typically it's OP_CODESEPARATOR.