remove mostly unused shortcuts

lib/msf/core/exploit/smb/client.rb

@@ -16,11 +16,6 @@ module Msf
       include Msf::Exploit::Remote::Tcp
       include Msf::Exploit::Remote::NTLM::Client
 
-      SIMPLE = Rex::Proto::SMB::SimpleClient
-      XCEPT  = Rex::Proto::SMB::Exceptions
-      CONST  = Rex::Proto::SMB::Constants
-
-
       # Alias over the Rex DCERPC protocol modules
       DCERPCPacket   = Rex::Proto::DCERPC::Packet
       DCERPCClient   = Rex::Proto::DCERPC::Client
@@ -92,7 +87,7 @@ module Msf
           direct = false
         end
 
-        c = SIMPLE.new(s, direct, versions)
+        c = Rex::Proto::SMB::SimpleClient.new(s, direct, versions)
 
         # setup pipe evasion foo
         if datastore['SMB::pipe_evasion']
@@ -219,7 +214,7 @@ module Msf
       def smb_file_exist?(file)
         begin
           fd = simple.open(file, 'o')
-        rescue XCEPT::ErrorCode => e
+        rescue Rex::Proto::SMB::Exceptions::ErrorCode => e
           # If attempting to open the file results in a "*_NOT_FOUND" error,
           # then we can be sure the file is not there.
           #