fix: remove unused import for KubeCon China 2021 slides

Signed-off-by: Lee Calcote <lee.calcote@layer5.io>

Author: leecalcote

src/collections/blog/2022/2022-05-14-service-meshcon-talk-intel/index.mdx

@@ -22,8 +22,6 @@ import { BlogWrapper } from "../../Blog.style.js";
 import Blockquote from "../../../../reusecore/Blockquote";
 import { Link } from "gatsby";
 
-import slidesTAG from "../../../events/2021/kubecon-china-2021/cncf-tag-network-and-service-mesh-working-group-kubecon-china-2021-lee-calcote-ken-owens.pdf";
-
 import meshmark from './meshmark-dark-text-side.svg';
 import performanceQuestion from './performance-question.webp';
 import smp from './smp.webp';