RFR: 8255477: Remove unused method URL.set(String protocol, String host, int port, String file, String ref) [v2]

[Сергей Цыпанов]

> Hello, while working with `java.net.URL` I've found unused package-private method `URL.set(String protocol, String host, int port, String file, String ref)` which can be safely removed from JDK. Testing: tier1, tier2
> 
> Could someone crate an issue for tracking of this simple change?

Сергей Цыпанов has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into url
 - 8255477: Remove unused method URL.set(String protocol, String host, int port, String file, String ref)

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/779/files
  - new: https://git.openjdk.java.net/jdk/pull/779/files/e2487aae..24d14e26

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=779&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=779&range=00-01

  Stats: 143793 lines in 2196 files changed: 79159 ins; 49141 del; 15493 mod
  Patch: https://git.openjdk.java.net/jdk/pull/779.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/779/head:pull/779

PR: https://git.openjdk.java.net/jdk/pull/779