RFR: 8294954: Remove superfluous ResourceMarks when using LogStream

[Johan Sjölen]

Hi,

I went through all of the places where LogStreams are created and removed the unnecessary ResourceMarks. I also added a ResourceMark in one place, where it was needed because of a call to `::name_and_sig_as_C_string` and moved one to the smallest scope where it is used.

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Commit messages:
 - Remove unnecessary ResourceMarks

Changes: https://git.openjdk.org/jdk/pull/10602/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10602&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8294954
  Stats: 59 lines in 41 files changed: 2 ins; 57 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/10602.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10602/head:pull/10602

PR: https://git.openjdk.org/jdk/pull/10602