More Tramp code cleanup

More Tramp code cleanup

* lisp/net/tramp.el (tramp-process-actions):
* lisp/net/tramp-adb.el (tramp-adb-handle-file-system-info)
(tramp-adb-handle-set-file-times)
(tramp-adb-maybe-open-connection):
* lisp/net/tramp-cmds.el (tramp-rename-files, tramp-rename-these-files)
(tramp-reporter-dump-variable):
* lisp/net/tramp-sh.el (tramp-do-file-attributes-with-stat)
(tramp-sh-handle-file-selinux-context)
(tramp-do-directory-files-and-attributes-with-stat)
(tramp-sh-handle-file-name-all-completions)
(tramp-sh-handle-write-region)
(tramp-sh-handle-file-notify-add-watch)
(tramp-sh-gvfs-monitor-dir-process-filter)
(tramp-sh-inotifywait-process-filter)
(tramp-sh-handle-file-system-info, tramp-find-executable)
(tramp-open-shell, tramp-find-shell):
* lisp/net/tramp-smb.el (tramp-smb-do-file-attributes-with-stat)
(tramp-smb-handle-file-system-info):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-handle-file-selinux-context)
(tramp-sudoedit-handle-file-system-info): Remove superfluous
`eval-when-compile', `concat' creates the string during byte
compilation.  Reported by Mattias Engdegård <mattiase@acm.org>.

* lisp/net/tramp-adb.el (tramp-adb-prompt): Simplify.
(tramp-adb-send-command):
* lisp/net/tramp-gvfs.el (tramp-gvfs-dbus-string-to-byte-array):
Use `string-match-p'.

* lisp/net/tramp-sh.el (tramp-sunos-unames): New defconst.
(tramp-find-executable, tramp-find-shell, tramp-get-remote-stat): Use it.