[lworld] RFR: [lworld] Disable assert until JDK-8350208 is fixed in mainline

[Tobias Hartmann]

As @merykitty explained in https://github.com/openjdk/valhalla/pull/1363, the assert triggers frequently in Valhalla but the underlying issue is not Valhalla specific. We see massive failures due to this in higher tiers, so I'll disable the assert for now.

I filed [JDK-8371125](https://bugs.openjdk.org/browse/JDK-8371125) to keep track of this.

Thanks,
Tobias

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Commit messages:
 - [lworld] Disable assert until JDK-8350208 is fixed in mainline

Changes: https://git.openjdk.org/valhalla/pull/1712/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1712&range=00
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/1712.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1712/head:pull/1712

PR: https://git.openjdk.org/valhalla/pull/1712