depends: patch libool out of libnatpmp/miniupnpc
Summary:
cctools' libtool (and llvm's clone) are unnecessary these days, and were only used (unnecessarily) in miniupnpc and libnatpnp. Both of those projects now have CMake support which eliminates their use.
Backport of core#29298.
Depends on D16563.
Test Plan: Run the GUIX builds.
Reviewers: #bitcoin_abc, PiRK
Reviewed By: #bitcoin_abc, PiRK
Differential Revision: https://reviews.bitcoinabc.org/D16564