d/control: fix lintian warning:

binary-control-field-duplicates-source field "priority" in package
libpcsclite1-dbg

I: pcsc-lite source: binary-control-field-duplicates-source field
"priority" in package libpcsclite1-dbg
N:
N:    In debian/control, this field for a binary package duplicates the value
N:    inherited from the source package paragraph. This doesn't hurt anything,
N:    but you may want to take advantage of the inheritance and set the value
N:    in only one place. It prevents missing duplicate places that need to be
N:    fixed if the value ever changes.
N:
N:    Severity: wishlist, Certainty: certain
N:
N:    Check: control-file, Type: source

debian/changelog

@@ -2,6 +2,8 @@ pcsc-lite (1.8.23-3) UNRELEASED; urgency=medium
 
   * Fix "missing multi-arch bits" by adding Multi-Arch: foreign"
     (Closes: #896987)
+  * d/control: fix lintian warning: binary-control-field-duplicates-source
+    field "priority" in package libpcsclite1-dbg
 
  -- Ludovic Rousseau <rousseau@debian.org>  Tue, 08 May 2018 22:07:50 +0200
 

debian/control

@@ -42,7 +42,6 @@ Description: Middleware to access a smart card using PC/SC (development files)
 Package: libpcsclite1-dbg
 Section: debug
 Architecture: any
-Priority: optional
 Conflicts: libpcsclite-dbg
 Replaces: libpcsclite-dbg
 Depends: libpcsclite1 (= ${binary:Version}), ${shlibs:Depends}, ${misc:Depends}