chore(deno): Stop testing types

[mydea]

I noticed that after #14729, now tests started failing 😬

The reason:

• We run deno check ./build/index.mjs
• This checks the types, but we now do not inline those anymore into the generated ./build/index.d.ts file
• Instead, we just import them from @sentry/core
• Now deno check downloads the latest version of core into a local tmp folder and uses this for checking
• But there are different exports there than locally, leading to test failures 😬

this PR simple kills the type tests - not sure if we need them/they are needed, but I can't think of a different way to make this work, there isn't really a way (as far as I see?) to tell deno check to consider a dependency from a local path instead 😬