borg.mk: Drop a package-specific suppression of a warning

Going forward, only suppress annoying messages that affect all/many
packages.  Users can suppress other warnings by adding to `SILENCIO'
in "etc/borg/config.mk".

Author: tarsius

borg.mk

@@ -32,16 +32,14 @@ EMACS_BATCH ?= $(EMACS) $(EMACS_Q_ARG) --batch $(EMACS_ARGS) $(EMACS_EXTRA)
 # - a013a0eee79 registering
 # - f6e9cb62ea0 succeeded
 # - 38e9e01efb1 scraping
-SILENCIO += --eval "(progn\
-  (with-eval-after-load 'gv\
-    (put 'buffer-substring 'byte-obsolete-generalized-variable nil))\
+SILENCIO += --eval "\
   (define-advice message (:around (fn format &rest args) silencio)\
     (unless (or (member format\
                         '(\"Not registering prefix \\\"%s\\\" from %s.  Affects: %S\"\
                           \"(Shell command succeeded with %s)\"))\
                 (and (stringp (car args))\
                      (string-match-p \"Scraping files for\" (car args))))\
-      (apply fn format args))))"
+      (apply fn format args)))"
 
 .FORCE:
 .PHONY: help helpall clean build native quick-clean quick-build quick \