RFR: 8333786: Serial: Remove SerialHeap::_incremental_collection_failed

[Albert Mingkun Yang]

Removing logic around incremental-collection failure. Additionally, the decision to use from-space if `!collection_attempt_is_safe() && !_eden_space->is_empty()` can cause heap too full to be handled properly by full-gc, so the support alloc-in-from-space is also removed.

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Commit messages:
 - s1-alloc

Changes: https://git.openjdk.org/jdk/pull/19594/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19594&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333786
  Stats: 118 lines in 4 files changed: 0 ins; 116 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/19594.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19594/head:pull/19594

PR: https://git.openjdk.org/jdk/pull/19594