8330699: Remove -XX:+UseEmptySlotsInSupers

[xiaotaonan]

Remove -XX:+UseEmptySlotsInSupers.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8330699: Remove -XX:+UseEmptySlotsInSupers (Enhancement - P4)(⚠️ The fixVersion in this issue is [24] but the fixVersion in .jcheck/conf is 23, a new backport will be created when this pr is integrated.)

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$ git fetch https://git.openjdk.org/jdk.git pull/19169/head:pull/19169
$ git checkout pull/19169

Update a local copy of the PR:
$ git checkout pull/19169
$ git pull https://git.openjdk.org/jdk.git pull/19169/head

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$ git pr checkout 19169

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[mlbridge]

Webrevs

• 00: Full (2031f89a)

[liach]

Depends on #18787, also redundant period in title.

[coleenp]

This option was deprecated in JDK 23 so cannot be removed until 24, but the removal is really to make the option obsolete. See the comments above your change in arguments.cpp. The line should not be removed in arguments.cpp. This change is wrong.

There is code that uses this option, that needs to be adjusted in the absence of this option. I don't think this change compiles. If you turn on GHA, in your settings you should see that this doesn't compile.

This RFE is assigned to me. I would appreciate if you closed this PR and let me make this change.