[jdk21u-dev] RFR: 8347286: (fs) Remove some extensions from java/nio/file/Files/probeContentType/Basic.java

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle.

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Commit messages:
 - Backport d002933c260921d0d582724516d15ebd130b851f

Changes: https://git.openjdk.org/jdk21u-dev/pull/1504/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1504&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347286
  Stats: 13 lines in 1 file changed: 0 ins; 11 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1504.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1504/head:pull/1504

PR: https://git.openjdk.org/jdk21u-dev/pull/1504