RFR: 8347720: [BACKOUT] Portable implementation of FORBID_C_FUNCTION and ALLOW_C_FUNCTION

[Kim Barrett]

Clean backout of JDK-8313396.

This reverts commit e0f2f4b216bc9358caa65975204aee086e4fcbd2.

Testing: mach5 tier1

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Commit messages:
 - Revert "8313396: Portable implementation of FORBID_C_FUNCTION and ALLOW_C_FUNCTION"

Changes: https://git.openjdk.org/jdk/pull/23110/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23110&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347720
  Stats: 584 lines in 32 files changed: 56 ins; 407 del; 121 mod
  Patch: https://git.openjdk.org/jdk/pull/23110.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23110/head:pull/23110

PR: https://git.openjdk.org/jdk/pull/23110