RFR: 8332676: Remove unused BarrierSetAssembler::incr_allocated_bytes [v3]

[Albert Mingkun Yang]

> Trivial removing dead code.

Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:

  review

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Changes:
  - all: https://git.openjdk.org/jdk/pull/19345/files
  - new: https://git.openjdk.org/jdk/pull/19345/files/970ea0f9..66ce9202

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=19345&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=19345&range=01-02

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19345.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19345/head:pull/19345

PR: https://git.openjdk.org/jdk/pull/19345