Remove needless GetTransactionOutputWeight helper #28431

1. 
   darosior commented at 9:20 am on September 8, 2023: member

   Introduced in #26567. My bad. Thanks AJ for noticing.
2. consensus/validation.h: remove needless GetTransactionOutputWeight helper

   Introduced in 9b7ec393b82ca9d7ada77d06e0835df0386a8b85. This copied the format of the other Get.*Weight helpers but it's useless for a CTxOut.

   8d6228fc1f
3. 
   DrahtBot commented at 9:20 am on September 8, 2023: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

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   Type	Reviewers
   ACK	ajtowns

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   Conflicts

   Reviewers, this pull request conflicts with the following ones:

   • #28438 (Use serialization parameters for CTransaction by ajtowns)

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4. 
   darosior commented at 9:20 am on September 8, 2023: member

   cc @ajtowns.
5. fanquake requested review from achow101 on Sep 8, 2023
6. 
   ajtowns commented at 4:48 am on September 9, 2023: contributor

   utACK 8d6228fc1fe72db3ac38ab9c853be0256bed5f24
7. fanquake merged this on Sep 9, 2023
8. fanquake closed this on Sep 9, 2023

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Contributors
darosior DrahtBot ajtowns

Review Requested
achow101