Code cleanup.

Code cleanup.

* net/tramp.el (tramp-debug-message): Do not check for connection
buffer.
(tramp-message): Use "vector" connection property.

* net/tramp.el (tramp-rfn-eshadow-update-overlay)
(tramp-equal-remote, tramp-eshell-directory-change)
* net/tramp-adb.el (tramp-adb-handle-copy-file)
(tramp-adb-handle-rename-file)
* net/tramp-cmds.el (tramp-list-remote-buffers)
(tramp-cleanup-connection, tramp-cleanup-this-connection)
* net/tramp-compat.el (tramp-compat-process-running-p)
* net/tramp-ftp.el (tramp-ftp-file-name-handler)
* net/tramp-gvfs.el (tramp-gvfs-handle-copy-file)
(tramp-gvfs-handle-rename-file)
* net/tramp-sh.el (tramp-sh-handle-set-file-times)
(tramp-set-file-uid-gid)
* net/tramp-smb.el (tramp-smb-handle-copy-file)
(tramp-smb-handle-rename-file): Use `tramp-tramp-file-p' instead
of `file-remote-p'.

* net/tramp.el (tramp-connectable-p, tramp-handle-file-remote-p)
* net/tramp-gw.el (tramp-gw-gw-proc-sentinel)
(tramp-gw-aux-proc-sentinel, tramp-gw-process-filter)
(tramp-gw-open-network-stream): Suppress unrelated traces.

* net/tramp-adb.el (tramp-adb-maybe-open-connection)
* net/tramp-gvfs.el (tramp-gvfs-handle-file-notify-add-watch)
* net/tramp-sh.el (tramp-do-copy-or-rename-file-out-of-band)
* net/tramp-smb.el (tramp-smb-maybe-open-connection): Set "vector"
connection property.

* net/tramp-cache.el (top): Suppress traces when reading
presistency file.

* net/tramp-sh.el (tramp-sh-handle-file-notify-add-watch):
Refactor common code.  Improve debug message.
(tramp-maybe-open-connection)
* net/tramp-smb.el (tramp-smb-call-winexe): Do not request
connection buffer too early.

* net/tramp-smb.el (tramp-smb-actions-get-acl): New defconst, renamed
from `tramp-smb-actions-with-acl'.
(tramp-smb-actions-set-acl): New defconst.
(tramp-smb-handle-copy-directory)
(tramp-smb-action-get-acl): New defun, renamed from
`tramp-smb-action-with-acl'.
(tramp-smb-action-set-acl): New defun.
(tramp-smb-handle-set-file-acl): Rewrite.