Remove embedded libminisketch (and its tests/fuzz) from build

libminisketch isn't actually used in 26.x, so ignore it

ci/test/03_test_script.sh

@@ -143,7 +143,6 @@ du -sh "${PREVIOUS_RELEASES_DIR}"
 if [[ $HOST = *-mingw32 ]]; then
   # Generate all binaries, so that they can be wrapped
   make "$MAKEJOBS" -C src/secp256k1 VERBOSE=1
-  make "$MAKEJOBS" -C src minisketch/test.exe VERBOSE=1
   "${BASE_ROOT_DIR}/ci/test/wrap-wine.sh"
 fi
 

src/Makefile.am

@@ -231,7 +231,6 @@ BITCOIN_CORE_H = \
   node/mempool_persist_args.h \
   node/miner.h \
   node/mini_miner.h \
-  node/minisketchwrapper.h \
   node/peerman_args.h \
   node/protocol_version.h \
   node/psbt.h \
@@ -436,7 +435,6 @@ libbitcoin_node_a_SOURCES = \
   node/mempool_persist_args.cpp \
   node/miner.cpp \
   node/mini_miner.cpp \
-  node/minisketchwrapper.cpp \
   node/peerman_args.cpp \
   node/psbt.cpp \
   node/timeoffsets.cpp \
@@ -1108,8 +1106,6 @@ endif
 	 echo "};"; \
 	} > "$@.new" && mv -f "$@.new" "$@"
 
-include Makefile.minisketch.include
-
 if EMBEDDED_LEVELDB
 include Makefile.crc32c.include
 include Makefile.leveldb.include

src/Makefile.test.include

@@ -114,7 +114,6 @@ BITCOIN_TESTS =\
   test/miner_tests.cpp \
   test/miniminer_tests.cpp \
   test/miniscript_tests.cpp \
-  test/minisketch_tests.cpp \
   test/multisig_tests.cpp \
   test/net_peer_connection_tests.cpp \
   test/net_peer_eviction_tests.cpp \
@@ -343,7 +342,6 @@ test_fuzz_fuzz_SOURCES = \
  test/fuzz/merkleblock.cpp \
  test/fuzz/message.cpp \
  test/fuzz/miniscript.cpp \
- test/fuzz/minisketch.cpp \
  test/fuzz/mini_miner.cpp \
  test/fuzz/muhash.cpp \
  test/fuzz/multiplication_overflow.cpp \