[31.x] Backports #34942

1. 
   fanquake commented at 4:34 am on March 28, 2026: member

   Backports:

   • #34918
   • #34939
2. fuzz: Remove unused g_setup pointers

   These are unused and removing them avoids clang warnings like:
   
   src/test/fuzz/deserialize.cpp:42:26: error: variable g_setup set but not used [-Werror,-Wunused-but-set-variable]
   
   Github-Pull: #34918
   Rebased-From: fabbfec3b00c138a28034a4f5594305d2220b9bb

   c767095cd9
3. fanquake added this to the milestone 31.0 on Mar 28, 2026
4. DrahtBot added the label Backport on Mar 28, 2026
5. 
   DrahtBot commented at 4:35 am on March 28, 2026: contributor

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6. fanquake renamed this:
   fuzz: Remove unused g_setup pointers
   [31.x] Backports
   on Mar 28, 2026
7. fuzz: Use CAmount for storing best_waste

   Waste is a CAmount, which is an int64_t. This will overflow an int, so
   `best_waste` should also be a `CAmount`.
   
   Github-Pull: #34939
   Rebased-From: 890a09b1e49925315a5636f29cc5af36928fe092

   683f9034eb

Contributors
fanquake DrahtBot

Labels
Backport

Milestone
31.0