Merge bitcoin#30664: build: Remove Autotools-based build system

faa382a ci, doc: Drop reference to `src/.bear-tidy-config` (Hennadii Stepanov)
d71ac76 build: Remove Autotools-based build system (Hennadii Stepanov)
e268b48 doc: Adjust `doc/design/libraries.md` (Hennadii Stepanov)
d209e4f doc: Drop mentions of `share/genbuild.sh` (Hennadii Stepanov)

Pull request description:

  This PR deletes the Autotools-based build system.

  The MSVC build system is deleted in bitcoin#30731.

ACKs for top commit:
  maflcko:
    re-ACK faa382a 🍦
  TheCharlatan:
    ACK faa382a
  fanquake:
    ACK faa382a

Tree-SHA512: 53df977b5b199a1c38f7f61a042a62b24831c559ba65a461b4ac1c96a1a56e2dfd676df79f1358fd1cc1749ff27e7b548086157f337d4f596c1054cb3d2d5739

.gitignore

@@ -3,154 +3,21 @@
 !/build-aux
 !/build_msvc
 
-*.tar.gz
-
-*.exe
-*.pdb
-src/bitcoin
-src/bitcoind
-src/bitcoin-cli
-src/bitcoin-gui
-src/bitcoin-node
-src/bitcoin-tx
-src/bitcoin-util
-src/bitcoin-chainstate
-src/bitcoin-wallet
-src/test/fuzz/fuzz
-src/test/test_bitcoin
-src/qt/test/test_bitcoin-qt
-
-# autoreconf
-Makefile.in
-aclocal.m4
-autom4te.cache/
-build-aux/config.guess
-build-aux/config.sub
-build-aux/depcomp
-build-aux/install-sh
-build-aux/ltmain.sh
-build-aux/m4/libtool.m4
-build-aux/m4/lt~obsolete.m4
-build-aux/m4/ltoptions.m4
-build-aux/m4/ltsugar.m4
-build-aux/m4/ltversion.m4
-build-aux/missing
-build-aux/compile
-build-aux/test-driver
-config.cache
-config.log
-config.status
-configure
-libtool
-src/config/bitcoin-config.h
-src/config/bitcoin-config.h.in
-src/config/stamp-h1
-src/obj
-share/setup.nsi
-share/qt/Info.plist
-
-src/qt/*.moc
-src/qt/moc_*.cpp
-src/qt/forms/ui_*.h
-
-src/qt/test/moc*.cpp
-
-src/qt/bitcoin-qt.config
-src/qt/bitcoin-qt.creator
-src/qt/bitcoin-qt.creator.user
-src/qt/bitcoin-qt.files
-src/qt/bitcoin-qt.includes
-
-.deps
-.dirstamp
-.libs
-.*.swp
-*~
-*.bak
-*.rej
-*.orig
 *.pyc
-*.o
-*.o-*
-*.a
-*.pb.cc
-*.pb.h
-*.dat
-
-*.log
-*.trs
-*.zip
-
-*.json.h
-*.raw.h
 
 # Only ignore unexpected patches
 *.patch
 !contrib/guix/patches/*.patch
 !depends/patches/**/*.patch
 
-#libtool object files
-*.lo
-*.la
-
-# Compilation and Qt preprocessor part
-*.qm
-Makefile
-!depends/Makefile
-src/qt/bitcoin-qt
-Bitcoin-Qt.app
-
-# Qt Creator
-Makefile.am.user
-
-# Unit-tests
-Makefile.test
-bitcoin-qt_test
-
-# Resources cpp
-qrc_*.cpp
-
-# Mac specific
-.DS_Store
-build
+/CMakeUserPresets.json
 
 # Previous releases
-releases
-
-#lcov
-*.gcno
-*.gcda
-/*.info
-test_bitcoin.coverage/
-total.coverage/
-fuzz.coverage/
-coverage_percent.txt
-/cov_tool_wrapper.sh
-qa-assets/
+/releases
 
 #build tests
-linux-coverage-build
-linux-build
-win32-build
-test/config.ini
-test/cache/*
-test/.mypy_cache/
 test/lint/test_runner/target/
 
-!src/leveldb*/Makefile
-
-/doc/doxygen/
-
-contrib/devtools/split-debug.sh
-
-# Output from running db4 installation
-db4/
-
-# clang-check
-*.plist
-
-dist/
-
 /guix-build-*
 
 /ci/scratch/