FTP: fix compatibility problems with MLSD by removing MLSD support.

net/ftp/ftp_network_transaction.h

Index: net/ftp/ftp_network_transaction.h
diff --git a/net/ftp/ftp_network_transaction.h b/net/ftp/ftp_network_transaction.h
index 5bad335d3c90a866e63fac0c60deec70391d0e26..678308a683528454689c49d8d82c32ad07b6d622 100644
--- a/net/ftp/ftp_network_transaction.h
+++ b/net/ftp/ftp_network_transaction.h
@@ -58,7 +58,6 @@ class FtpNetworkTransaction : public FtpTransaction {
     COMMAND_SIZE,
     COMMAND_RETR,
     COMMAND_CWD,
-    COMMAND_MLSD,
     COMMAND_LIST,
     COMMAND_QUIT,
   };
@@ -142,8 +141,6 @@ class FtpNetworkTransaction : public FtpTransaction {
   int ProcessResponseSIZE(const FtpCtrlResponse& response);
   int DoCtrlWriteCWD();
   int ProcessResponseCWD(const FtpCtrlResponse& response);
-  int DoCtrlWriteMLSD();
-  int ProcessResponseMLSD(const FtpCtrlResponse& response);
   int DoCtrlWriteLIST();
   int ProcessResponseLIST(const FtpCtrlResponse& response);
   int DoCtrlWriteQUIT();
@@ -234,7 +231,6 @@ class FtpNetworkTransaction : public FtpTransaction {
     STATE_CTRL_WRITE_RETR,
     STATE_CTRL_WRITE_SIZE,
     STATE_CTRL_WRITE_CWD,
-    STATE_CTRL_WRITE_MLSD,
     STATE_CTRL_WRITE_LIST,
     STATE_CTRL_WRITE_QUIT,
     // Data connection states: