Update packaging:

* Remove watch file.
 * Сonformant to policy 4.4.1.1.
 * Remove obsolete variable from debian/rules.
 * Add Vcs fileds to debian/control

debian/control

@@ -3,11 +3,12 @@ Section: libs
 Priority: optional
 Maintainer: Alexander Ponyatykh <lazyranma@gmail.com>
 Build-Depends: debhelper (>=12), libusb-dev
-Standards-Version: 4.3.0
+Standards-Version: 4.4.1
 Homepage: https://sourceforge.net/projects/g15tools/
+Vcs-Git: https://salsa.debian.org/debian/libg15.git
+Vcs-Browser: https://salsa.debian.org/debian/libg15
 
 Package: libg15-1
-Section: libs
 Architecture: any
 Multi-Arch: same
 Depends: ${shlibs:Depends}, ${misc:Depends}