RFR: 8327705: Remove mention of "applet" from java.text package description

[Naoto Sato]

Removing left over "applet" mention in the package-info doc.

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Commit messages:
 - initial commit

Changes: https://git.openjdk.org/jdk/pull/18173/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18173&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8327705
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/18173.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18173/head:pull/18173

PR: https://git.openjdk.org/jdk/pull/18173