RFR: 8330155: Serial: Remove TenuredSpace [v3]

[Guoxiong Li]

> Hi all,
> 
> This patch removes the class `TenuredSpace` and adjusts its usages. After removing `TenuredSpace`, the file `space.inline.hpp` is empty, so I remove this file and change the included header file to `space.hpp`.
> 
> The test `make test-tier1_gc` passed locally. Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:

  Fix included header file error after merging master.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18894/files
  - new: https://git.openjdk.org/jdk/pull/18894/files/0796e0b4..5478742c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18894&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18894&range=01-02

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/18894.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18894/head:pull/18894

PR: https://git.openjdk.org/jdk/pull/18894