RFR: 8344220: Remove calls to SecurityManager and doPrivileged in java.net.InetAddress and sun.net.util.IPAddressUtil after JEP 486 integration [v2]

[Aleksei Efimov]

> This PR removes calls to and mentions of the `SecurityManager` and the `doPrivileged` from the `java.net.InetAddress` and `sun.net.util.IPAddressUtil` and related classes. 
> 
> Noteworthy changes:
> - the default value (`30s`) of the `networkaddress.cache.ttl` security property responsible for successfull address lookups  kept unchanged, the mention of SM removed from the property description in the `net-properties.html` file.
> - connect permission checks are removed from the `InetAddress`, and relevant classes, like `SocketPermission`. `SocketPermission.initEphemeralPorts` was also modified to remove `doPrivileged`.
> - `RuntimePermission("inetAddressResolverProvider")` permission has been removed from the system-wide `InetAddressResolver` initialization code.
> 
> `tier1` to `tier3` tests show no relevant failures.

Aleksei Efimov has updated the pull request incrementally with one additional commit since the last revision:

  Address review comments. Remove unused methods from InetAddressCachePolicy.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22376/files
  - new: https://git.openjdk.org/jdk/pull/22376/files/51fc23c2..203edfed

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22376&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22376&range=00-01

  Stats: 86 lines in 3 files changed: 0 ins; 80 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/22376.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22376/head:pull/22376

PR: https://git.openjdk.org/jdk/pull/22376