RFR: 8371721: Refactor checkTrusted methods in X509TrustManagerImpl [v3]

[Artur Barashev]

> The 3 checkTrusted methods in X509TrustManagerImpl have a lot of repeating code that can be moved into a helper method.

Artur Barashev has updated the pull request incrementally with one additional commit since the last revision:

  Revert logging changes

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Changes:
  - all: https://git.openjdk.org/jdk/pull/28275/files
  - new: https://git.openjdk.org/jdk/pull/28275/files/d2399cf0..0cabd3c4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28275&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28275&range=01-02

  Stats: 37 lines in 2 files changed: 6 ins; 20 del; 11 mod
  Patch: https://git.openjdk.org/jdk/pull/28275.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28275/head:pull/28275

PR: https://git.openjdk.org/jdk/pull/28275