kernel: De-duplicate source file list

The external kernel library should use the same file list that the
internal kernel library uses.

src/Makefile.am

@@ -940,87 +940,7 @@ libbitcoinkernel_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(builddir)/obj -I$(srcdir)/secp
 # to export from the library.
 libbitcoinkernel_la_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) -fvisibility=default
 
-# TODO: libbitcoinkernel is a work in progress consensus engine library, as more
-#       and more modules are decoupled from the consensus engine, this list will
-#       shrink to only those which are absolutely necessary.
-libbitcoinkernel_la_SOURCES = \
-  kernel/bitcoinkernel.cpp \
-  arith_uint256.cpp \
-  chain.cpp \
-  clientversion.cpp \
-  coins.cpp \
-  compressor.cpp \
-  consensus/merkle.cpp \
-  consensus/tx_check.cpp \
-  consensus/tx_verify.cpp \
-  core_read.cpp \
-  dbwrapper.cpp \
-  deploymentinfo.cpp \
-  deploymentstatus.cpp \
-  flatfile.cpp \
-  hash.cpp \
-  kernel/chain.cpp \
-  kernel/checks.cpp \
-  kernel/chainparams.cpp \
-  kernel/coinstats.cpp \
-  kernel/context.cpp \
-  kernel/cs_main.cpp \
-  kernel/disconnected_transactions.cpp \
-  kernel/mempool_persist.cpp \
-  kernel/mempool_removal_reason.cpp \
-  key.cpp \
-  logging.cpp \
-  node/blockstorage.cpp \
-  node/chainstate.cpp \
-  node/utxo_snapshot.cpp \
-  policy/feerate.cpp \
-  policy/fees.cpp \
-  policy/packages.cpp \
-  policy/policy.cpp \
-  policy/rbf.cpp \
-  policy/settings.cpp \
-  pow.cpp \
-  primitives/block.cpp \
-  primitives/transaction.cpp \
-  pubkey.cpp \
-  random.cpp \
-  randomenv.cpp \
-  scheduler.cpp \
-  script/interpreter.cpp \
-  script/script.cpp \
-  script/script_error.cpp \
-  script/sigcache.cpp \
-  script/solver.cpp \
-  signet.cpp \
-  streams.cpp \
-  support/lockedpool.cpp \
-  sync.cpp \
-  txdb.cpp \
-  txmempool.cpp \
-  uint256.cpp \
-  util/batchpriority.cpp \
-  util/chaintype.cpp \
-  util/check.cpp \
-  util/exception.cpp \
-  util/fs.cpp \
-  util/fs_helpers.cpp \
-  util/getuniquepath.cpp \
-  util/hasher.cpp \
-  util/moneystr.cpp \
-  util/rbf.cpp \
-  util/serfloat.cpp \
-  util/signalinterrupt.cpp \
-  util/strencodings.cpp \
-  util/string.cpp \
-  util/syserror.cpp \
-  util/thread.cpp \
-  util/threadnames.cpp \
-  util/time.cpp \
-  util/tokenpipe.cpp \
-  validation.cpp \
-  validationinterface.cpp \
-  versionbits.cpp \
-  warnings.cpp
+libbitcoinkernel_la_SOURCES = kernel/bitcoinkernel.cpp $(libbitcoin_kernel_a_SOURCES) $(libbitcoin_util_a_SOURCES) $(libbitcoin_consensus_a_SOURCES)
 
 # Required for obj/build.h to be generated first.
 # More details: https://www.gnu.org/software/automake/manual/html_node/Built-Sources-Example.html