Variable: delete-auto-save-files
delete-auto-save-files is a customizable variable defined in buffer.c.
Value
t
Documentation
Non-nil means delete auto-save file when a buffer is saved.
This is the default. If nil, auto-save file deletion is inhibited.
Probably introduced at or before Emacs version 17.
Source Code
// Defined in /usr/src/emacs/src/buffer.c
DEFVAR_BOOL ("delete-auto-save-files", delete_auto_save_files,
doc: /* Non-nil means delete auto-save file when a buffer is saved.
This is the default. If nil, auto-save file deletion is inhibited. */);