RFR: 8280146: Parallel: Remove time log tag

[Thomas Schatzl]

On Tue, 18 Jan 2022 14:09:53 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple change of removing some unhelpful logs in Parallel GC. Then, `time` log tag becomes unused and is removed as well.
> 
> Test: hotspot_gc

Lgtm.

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Marked as reviewed by tschatzl (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/7128