[cleanup] Remove requirement for types

The types from package.json say version v4 when we are using v13.
Because v13 comes with the types out of the box we don't need this.

The package will be remove as part of updating all packages CL.

Bug: none
Change-Id: I1cc3a8b57d60ef6ac8830a07dc1720b26b3bf576
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6764816
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Jack Franklin <jacktfranklin@chromium.org>
Auto-Submit: Nikolay Vitkov <nvitkov@chromium.org>

Author: Lightning00Blade

front_end/third_party/marked/BUILD.gn

@@ -10,7 +10,6 @@ devtools_pre_built("marked") {
   sources_are_release = false
 
   sources = [
-    "../../../node_modules/@types/marked/index.d.ts",
     "marked-tsconfig.json",
     "package/lib/marked.esm.d.ts",
     "package/lib/marked.esm.js",