Merge bitcoin/bitcoin#26691: Update secp256k1 subtree to libsecp256k1 version 0.2.0

202291722300b86f36e97de7960d40a32544c2d1 Add secp256k1_selftest call (Pieter Wuille)
3bfca788b0dae879bfc745cc52c2cb6edc49fd70 Remove explicit enabling of default modules (Pieter Wuille)
4462cb04986d77eddcfc6e8f75e04dc278a8147a Adapt to libsecp256k1 API changes (Pieter Wuille)
9d47e7b71b2805430e8c7b43816efd225a6ccd8c Squashed 'src/secp256k1/' changes from 44c2452fd3..21ffe4b22a (Pieter Wuille)

Pull request description:

  Now that libsecp256k1 has a release (https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-December/021271.html), update the subtree to match it.

  The changes themselves are not very impactful for Bitcoin Core, but include:
  * It's no longer needed to specify whether contexts are for signing or verification or both (all contexts support everything), so make use of that in this PR.
  * Verification operations can use the static context now, removing the need for some infrastructure in pubkey.cpp to make sure a context exists.
  * Most modules are now enabled by default, so we can drop explicit enabling for them.
  * CI improvements (in particular, MSVC and more recent MacOS)
  * Introduction of an internal int128 type, which has no effect for GCC/Clang builds, but enables 128-bit multiplication in MSVC, giving a ~20% speedup there (but still slower than GCC/Clang).
  * Release process changes (process documentation, changelog, ...).

ACKs for top commit:
  Sjors:
    ACK 202291722300b86f36e97de7960d40a32544c2d1, but 4462cb04986d77eddcfc6e8f75e04dc278a8147a could use more eyes on it.
  achow101:
    ACK 202291722300b86f36e97de7960d40a32544c2d1
  jonasnick:
    utACK 202291722300b86f36e97de7960d40a32544c2d1

Tree-SHA512: 8a9fe28852abe74abd6f96fef16a94d5a427b1d99bff4caab1699014d24698aab9b966a5364a46ed1001c07a7c1d825154ed4e6557c7decce952b77330a8616b

4 files changed, 0 insertions, 4 deletions

diff --git a/src/bench/ccoins_caching.cpp b/src/bench/ccoins_caching.cpp
index 5243391d9e..4a3ec67c2b 100644
--- a/src/bench/ccoins_caching.cpp
+++ b/src/bench/ccoins_caching.cpp
@@ -18,7 +18,6 @@
 // (https://github.com/bitcoin/bitcoin/issues/7883#issuecomment-224807484)
 static void CCoinsCaching(benchmark::Bench& bench)
 {
-    const ECCVerifyHandle verify_handle;
     ECC_Start();
 
     FillableSigningProvider keystore;
diff --git a/src/bench/checkqueue.cpp b/src/bench/checkqueue.cpp
index 8df25d94c3..dfd7275f46 100644
--- a/src/bench/checkqueue.cpp
+++ b/src/bench/checkqueue.cpp
@@ -25,7 +25,6 @@ static void CCheckQueueSpeedPrevectorJob(benchmark::Bench& bench)
     // We shouldn't ever be running with the checkqueue on a single core machine.
     if (GetNumCores() <= 1) return;
 
-    const ECCVerifyHandle verify_handle;
     ECC_Start();
 
     struct PrevectorJob {
diff --git a/src/bench/descriptors.cpp b/src/bench/descriptors.cpp
index 40a0a20db8..5d28d26909 100644
--- a/src/bench/descriptors.cpp
+++ b/src/bench/descriptors.cpp
@@ -13,7 +13,6 @@
 
 static void ExpandDescriptor(benchmark::Bench& bench)
 {
-    const ECCVerifyHandle verify_handle;
     ECC_Start();
 
     const auto desc_str = "sh(wsh(multi(16,03669b8afcec803a0d323e9a17f3ea8e68e8abe5a278020a929adbec52421adbd0,0260b2003c386519fc9eadf2b5cf124dd8eea4c4e68d5e154050a9346ea98ce600,0362a74e399c39ed5593852a30147f2959b56bb827dfa3e60e464b02ccf87dc5e8,0261345b53de74a4d721ef877c255429961b7e43714171ac06168d7e08c542a8b8,02da72e8b46901a65d4374fe6315538d8f368557dda3a1dcf9ea903f3afe7314c8,0318c82dd0b53fd3a932d16e0ba9e278fcc937c582d5781be626ff16e201f72286,0297ccef1ef99f9d73dec9ad37476ddb232f1238aff877af19e72ba04493361009,02e502cfd5c3f972fe9a3e2a18827820638f96b6f347e54d63deb839011fd5765d,03e687710f0e3ebe81c1037074da939d409c0025f17eb86adb9427d28f0f7ae0e9,02c04d3a5274952acdbc76987f3184b346a483d43be40874624b29e3692c1df5af,02ed06e0f418b5b43a7ec01d1d7d27290fa15f75771cb69b642a51471c29c84acd,036d46073cbb9ffee90473f3da429abc8de7f8751199da44485682a989a4bebb24,02f5d1ff7c9029a80a4e36b9a5497027ef7f3e73384a4a94fbfe7c4e9164eec8bc,02e41deffd1b7cce11cde209a781adcffdabd1b91c0ba0375857a2bfd9302419f3,02d76625f7956a7fc505ab02556c23ee72d832f1bac391bcd2d3abce5710a13d06,0399eb0a5487515802dc14544cf10b3666623762fbed2ec38a3975716e2c29c232)))";
diff --git a/src/bench/verify_script.cpp b/src/bench/verify_script.cpp
index 2c1abf0846..757094167a 100644
--- a/src/bench/verify_script.cpp
+++ b/src/bench/verify_script.cpp
@@ -18,7 +18,6 @@
 // modified to measure performance of other types of scripts.
 static void VerifyScriptBench(benchmark::Bench& bench)
 {
-    const ECCVerifyHandle verify_handle;
     ECC_Start();
 
     const uint32_t flags{SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH};