update format function

src/vulkan/render.zig

@@ -59,8 +59,6 @@ const preamble =
     \\    return struct {
     \\        pub fn format(
     \\            self: FlagsType,
-    \\            comptime _: []const u8,
-    \\            _: std.fmt.FormatOptions,
     \\            writer: anytype,
     \\        ) !void {
     \\            try writer.writeAll(@typeName(FlagsType) ++ "{");