We don't need libvulkan-dev to build Vulkan support

debian/control

@@ -20,7 +20,6 @@ Build-Depends: debhelper (>= 9),
                libibus-1.0-dev[linux-any],
                libusb2-dev [kfreebsd-any],
                libusbhid-dev [kfreebsd-any],
-               libvulkan-dev,
                libx11-dev,
                libxcursor-dev,
                libxext-dev,