RFR: 8253345: Remove unimplemented Arguments::lookup_logging_aliases

[Aleksey Shipilev]

Renamed with JDK-8146800, but old declaration was left behind.

Testing:

 - [x] Linux x86_64 fastdebug build
 - [x] Text search for lookup_logging_aliases in src/

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Commit messages:
 - 8253345: Remove unimplemented Arguments::lookup_logging_aliases

Changes: https://git.openjdk.java.net/jdk/pull/241/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=241&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253345
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/241.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/241/head:pull/241

PR: https://git.openjdk.java.net/jdk/pull/241