RFR: 8325800: Drop unused cups declaration from Oracle build configuration

[Erik Joelsson]

On Tue, 13 Feb 2024 20:47:01 GMT, Mikael Vidstedt <mikael at openjdk.org> wrote:

> The cups dependency was used for Solaris builds, and has been unused since [JDK-8244224](https://bugs.openjdk.org/browse/JDK-8244224).
> 
> Testing: tier1

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/17837#pullrequestreview-1878936683