[jdk17u-dev] RFR: 8308554: [17u] Fix commit of 8286191. vm.musl was not removed from ExternalEditorTest

[Goetz Lindenmaier]

…ternalEditorTest

This edit should have been included in 8286191. 
It was dropped when merging in the jdk repo with the push of JDK-8285987.

-------------

Commit messages:
 - 8308554: [17u] Fix commit of 8286191. vm.musl was not removed from ExternalEditorTest

Changes: https://git.openjdk.org/jdk17u-dev/pull/1385/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1385&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8308554
  Stats: 3 lines in 1 file changed: 0 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1385.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1385/head:pull/1385

PR: https://git.openjdk.org/jdk17u-dev/pull/1385