RFR: 8254168: Remove TemplateTable::count_calls

[Claes Redestad]

Method TemplateTable::count_calls is never called, and only has a dummy definition on some platforms. I suggest
removing it.

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Commit messages:
 - Merge branch 'master' into remove_count_calls
 - Remove TemplateTable::count_calls

Changes: https://git.openjdk.java.net/jdk/pull/544/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=544&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8254168
  Stats: 17 lines in 4 files changed: 0 ins; 17 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/544.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/544/head:pull/544

PR: https://git.openjdk.java.net/jdk/pull/544