Revert "Output number of characters added to file (Bug#354)"

Revert "Output number of characters added to file (Bug#354)"

The extra message text turned out to be quite annoying in practice,
and is generally more trouble than it's worth.  Also revert several
related changes.

Partially revert "Handle `write-region' messages in Tramp properly"
Revert "New var write-region-verbose, default nil"
Revert "* src/fileio.c (write_region): Don't say "1 characters".  (Bug#26796)"
Revert "Minor tuneup of write-region change"
Revert "Adjust write-region so file name is at the beginning again"
Revert "Fix handling of non-integer START param to write-region"
Revert "Output number of characters added to file (Bug#354)"

* doc/emacs/files.texi (Misc File Ops):
* etc/NEWS:
* lisp/epa-file.el (epa-file-write-region):
* lisp/gnus/mm-util.el (mm-append-to-file):
* lisp/jka-compr.el (jka-compr-write-region):
* lisp/net/ange-ftp.el (ange-ftp-write-region):
* lisp/net/tramp-adb.el (tramp-adb-handle-write-region):
* lisp/net/tramp-gvfs.el (tramp-gvfs-handle-write-region):
* lisp/net/tramp-sh.el (tramp-sh-handle-write-region):
* lisp/net/tramp-smb.el (tramp-smb-handle-write-region):
* lisp/net/tramp.el (tramp-handle-write-region-message):
* src/fileio.c (write_region, syms_of_fileio):
* test/lisp/net/tramp-tests.el (tramp-test10-write-region): Remove
extra characters from file writing messages.