Drop build-deps on quilt in control.

debian/control

@@ -8,7 +8,6 @@ Priority: optional
 Build-Depends: debhelper (>= 9),
                cmake (>= 3.0.2),
                qtbase5-dev,
-               quilt,
 Standards-Version: 3.9.6
 Vcs-Browser: http://anonscm.debian.org/cgit/pkg-lxqt/qtermwidget.git
 Vcs-Git: git://anonscm.debian.org/pkg-lxqt/qtermwidget.git

debian/rules

@@ -2,7 +2,7 @@
 #export DH_VERBOSE=1
 
 %:
-	dh $@  --buildsystem cmake --parallel --with quilt
+	dh $@  --buildsystem cmake --parallel
 
 override_dh_auto_configure:
 	dh_auto_configure -- -DUSE_QT5=ON -DBUILD_DESIGNER_PLUGIN=0