Delete file_contents initialization

Author: jvazquez-r7

modules/exploits/windows/smb/group_policy_startup.rb

@@ -63,8 +63,6 @@ def initialize(info={})
   def setup
     super
     self.file_name = datastore['FILE_NAME'] || "#{Rex::Text.rand_text_alpha(4 + rand(3))}.vbs"
-    exe = payload.encoded_exe
-    self.file_contents = Msf::Util::EXE.to_exe_vbs(exe)
     @custom_payloads = {}
     print_status("File available on #{unc}...")
   end