testrand: Remove testrand_finish #1832

1. 
   real-or-random commented at 2:11 pm on March 2, 2026: contributor

   This removes printing of the “random run = " at the end of the tests. I haven’t seen a single case where this proved to be useful. And as of 48789dafc2a866bbc639184f0387637c0decb8c5, this is anyway printed only at the end of the exhaustive tests and not the normal tests, so the probability that this will be useful in the future is very low.
2. testrand: Remove testrand_finish

   This removes printing of the "random run = " at the end of the tests. I
   haven't seen a single case where this proved to be useful. And as of
   48789dafc2a866bbc639184f0387637c0decb8c5, this is anyway printed only at
   the end of the exhaustive tests and not the normal tests, so the
   probability that this will be useful in the future is very low.

   8d0eda07e9
3. real-or-random added the label assurance on Mar 2, 2026
4. real-or-random added the label tweak/refactor on Mar 2, 2026
5. 
   sipa commented at 4:22 pm on March 2, 2026: contributor

   ACK 8d0eda07e9eae7418ce6d23f904faca3ddfb0eb0
6. real-or-random merged this on Mar 2, 2026
7. real-or-random closed this on Mar 2, 2026

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8. 
   furszy commented at 10:45 pm on March 2, 2026: member

   post-merge ACK https://github.com/bitcoin-core/secp256k1/commit/8d0eda07e9eae7418ce6d23f904faca3ddfb0eb0

Contributors
real-or-random sipa furszy

Labels
assurance tweak/refactor