RFR: 8358655: AArch64: Simplify Interpreter::profile_taken_branch

[Chad Rakoczy]

[JDK-8358655](https://bugs.openjdk.org/browse/JDK-8358655)

The aarch64 version of [JDK-8357434](https://bugs.openjdk.org/browse/JDK-8357434)

The counter is 64-bit, never practically overflows, and no other code cares about it so it is safe to remove

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Commit messages:
 - 8358655: AArch64: Simplify Interpreter::profile_taken_branch

Changes: https://git.openjdk.org/jdk/pull/25906/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25906&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8358655
  Stats: 22 lines in 3 files changed: 0 ins; 16 del; 6 mod
  Patch: https://git.openjdk.org/jdk/pull/25906.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25906/head:pull/25906

PR: https://git.openjdk.org/jdk/pull/25906