RFR: 8377549: [BACKOUT] Need to keep leading zeros in TlsPremasterSecret of TLS1.3 DHKeyAgreement

[Daniel Jeliński]

The fix is causing interoperability issues with certain third-party JCE providers, and there's no workaround available.

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

Commit messages:
 - Revert "8328046: Need to keep leading zeros in TlsPremasterSecret of TLS1.3 DHKeyAgreement"

Changes: https://git.openjdk.org/jdk/pull/29648/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29648&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8377549
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29648.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29648/head:pull/29648

PR: https://git.openjdk.org/jdk/pull/29648