RFR: 8264727: Remove extraneous whitespace from phase timings report

[earthling-amzn]

This extra space doesn't look like it was intended to improve any alignment of text in the report.

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Commit messages:
 - Remove extraneous whitespace from phase timings report

Changes: https://git.openjdk.java.net/jdk/pull/3342/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3342&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264727
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3342.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3342/head:pull/3342

PR: https://git.openjdk.java.net/jdk/pull/3342