[Intl] Removed non-working $fallback argument from ArrayAccessibleResourceBundle
bug #11905 [Intl] Removed non-working $fallback argument from ArrayAccessibleResourceBundle (webmozart)

This PR was merged into the 2.3 branch.

Discussion
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[Intl] Removed non-working $fallback argument from ArrayAccessibleResourceBundle

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

The code in question didn't actually work. This was extracted from #9206.

Commits
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5feda5e [Intl] Removed non-working $fallback argument from ArrayAccessibleResourceBundle