RFR: 8209092: Remove outdated wording from RC5ParameterSpec

[Jack Hartstein]

The RC5ParameterSpec class description contains the following sentence: "This class can be used to initialize a Cipher object that implements the RC5 algorithm as supplied by RSA Security LLC, or any parties authorized by RSA Security."

The part "as supplied by RSA Security LLC, or any parties authorized by RSA Security." should be removed. We don't generally include information about 3rd-party JCA providers in the standard javadocs. Also the "authorized" part was probably referring to the RC5 patent but that has since expired.

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Commit messages:
 - fixed whitespace error in file header
 - 8209092: fixed RC5 specifications and updated copyright date

Changes: https://git.openjdk.java.net/jdk/pull/4443/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4443&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8209092
  Stats: 4 lines in 1 file changed: 0 ins; 2 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4443.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4443/head:pull/4443

PR: https://git.openjdk.java.net/jdk/pull/4443