Merge bitcoin/bitcoin#29800: ci: Drop duplicated compiler flags

a3485af ci: Drop duplicated compiler flags (Hennadii Stepanov)

Pull request description:

  On the master branch @ 0d509ba, it is easy to check the _"Options used to compile and link"_ section in the `configure` script output and observe duplicated compiler flags.

  This PR cleans such cases up.

ACKs for top commit:
  maflcko:
    re-ACK a3485af
  fanquake:
    ACK a3485af - no-longer a change in behaviour.

Tree-SHA512: 7e644fcfad7be48af3b18edd2994c0c78a21ac3f9fff497724be80f74c9e859d156de15ca4024c5c50d1080435576ce63402b48aba5c2fd556e2ed7e318e0e34

Author: fanquake

ci/test/00_setup_env_native_fuzz_with_msan.sh

@@ -17,7 +17,7 @@ export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
 export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,memory --disable-hardening --with-asm=no CFLAGS='${MSAN_FLAGS}' CPPFLAGS='-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
+export BITCOIN_CONFIG="--enable-fuzz --with-sanitizers=fuzzer,memory --disable-hardening --with-asm=no CPPFLAGS='-DBOOST_MULTI_INDEX_ENABLE_SAFE_MODE'"
 export USE_MEMORY_SANITIZER="true"
 export RUN_UNIT_TESTS="false"
 export RUN_FUNCTIONAL_TESTS="false"

ci/test/00_setup_env_native_msan.sh

@@ -17,7 +17,7 @@ export PACKAGES="ninja-build"
 # BDB generates false-positives and will be removed in future
 export DEP_OPTS="DEBUG=1 NO_BDB=1 NO_QT=1 CC=clang CXX=clang++ CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
 export GOAL="install"
-export BITCOIN_CONFIG="--with-sanitizers=memory --disable-hardening --with-asm=no CFLAGS='${MSAN_FLAGS}' CXXFLAGS='${MSAN_AND_LIBCXX_FLAGS}'"
+export BITCOIN_CONFIG="--with-sanitizers=memory --disable-hardening --with-asm=no"
 export USE_MEMORY_SANITIZER="true"
 export RUN_FUNCTIONAL_TESTS="false"
 export CCACHE_MAXSIZE=250M

ci/test/00_setup_env_native_tsan.sh

@@ -11,4 +11,4 @@ export CI_IMAGE_NAME_TAG="docker.io/ubuntu:24.04"
 export PACKAGES="clang-18 llvm-18 libclang-rt-18-dev libc++abi-18-dev libc++-18-dev python3-zmq"
 export DEP_OPTS="CC=clang-18 CXX='clang++-18 -stdlib=libc++'"
 export GOAL="install"
-export BITCOIN_CONFIG="--enable-zmq CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER -DDEBUG_LOCKCONTENTION' CXXFLAGS='-g' --with-sanitizers=thread"
+export BITCOIN_CONFIG="--enable-zmq CPPFLAGS='-DARENA_DEBUG -DDEBUG_LOCKORDER -DDEBUG_LOCKCONTENTION' --with-sanitizers=thread"