Remove obsolete gbp.conf.

debian/changelog

@@ -7,6 +7,7 @@ lubuntu-artwork (24.04.3) UNRELEASED; urgency=medium
   * Relax several dependencies that have been satisfiable since Focal, and
     remove some ancient Conflicts/Replaces present for several LTSes now.
   * Bump copyright years for myself.
+  * Remove obsolete gbp.conf.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Wed, 29 Nov 2023 09:16:45 -0600
 

debian/gbp.conf

@@ -1,3 +0,0 @@
-[buildpackage]
-export-dir  = ../build-area/
-debian-branch = master