Remove send_channel_data() from devredir.h, it's declared in chansrv.h

Include "chansrv.h" from devredir.c to have send_channel_data()
declaration.

sesman/chansrv/devredir.c

@@ -46,6 +46,7 @@
 #include "parse.h"
 #include "os_calls.h"
 #include "log.h"
+#include "chansrv.h"
 #include "chansrv_fuse.h"
 #include "devredir.h"
 #include "smartcard.h"

sesman/chansrv/devredir.h

@@ -112,8 +112,6 @@ dev_redir_file_write(void *fusep, tui32 DeviceId, tui32 FileId,
 int APP_CC
 devredir_rmdir_or_file(void *fusep, tui32 device_id, const char *path, int mode);
 
-int send_channel_data(int chan_id, char *data, int size);
-
 /*
  * RDPDR_HEADER definitions
  */