RFR: 8315378: [BACKOUT] runtime/NMT/SummarySanityCheck.java failed with "Total committed (MMMMMM) did not match the summarized committed (NNNNNN)"

[Gerard Ziemski]

This is a BACKOUT of https://bugs.openjdk.org/browse/JDK-8298992

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Commit messages:
 - undo JDK-8298992

Changes: https://git.openjdk.org/jdk/pull/15522/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15522&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315378
  Stats: 34 lines in 2 files changed: 9 ins; 24 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15522.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15522/head:pull/15522

PR: https://git.openjdk.org/jdk/pull/15522