Inclua set nowritebackup
e set nobackup
no seu .vimrc
/ .gvimrc
.
:help writebackup
'writebackup' 'wb' boolean (default on with |+writebackup| feature, off
otherwise)
global
{not in Vi}
Make a backup before overwriting a file. The backup is removed after
the file was successfully written, unless the 'backup' option is
also on. Reset this option if your file system is almost full. See
|backup-table| for another explanation.
When the 'backupskip' pattern matches, a backup is not made anyway.
NOTE: This option is set to the default value when 'compatible' is
set.