depends: Drop natpmp and associated option from depends

depends/packages/libnatpmp.mk

@@ -1,20 +0,0 @@
-package=libnatpmp
-$(package)_version=f2433bec24ca3d3f22a8a7840728a3ac177f94ba
-$(package)_download_path=https://github.com/miniupnp/libnatpmp/archive
-$(package)_file_name=$($(package)_version).tar.gz
-$(package)_sha256_hash=ef84979950dfb3556705b63c9cd6c95501b75e887fba466234b187f3c9029669
-$(package)_build_subdir=build
-
-define $(package)_config_cmds
-  $($(package)_cmake) -S .. -B .
-endef
-
-define $(package)_build_cmds
-  $(MAKE) natpmp
-endef
-
-define $(package)_stage_cmds
-  mkdir -p $($(package)_staging_prefix_dir)/include $($(package)_staging_prefix_dir)/lib && \
-  install ../natpmp.h  ../natpmp_declspec.h $($(package)_staging_prefix_dir)/include && \
-  install libnatpmp.a $($(package)_staging_prefix_dir)/lib
-endef

depends/packages/packages.mk

@@ -18,7 +18,6 @@ sqlite_packages=sqlite
 zmq_packages=zeromq
 
 upnp_packages=miniupnpc
-natpmp_packages=libnatpmp
 
 multiprocess_packages = libmultiprocess capnp
 multiprocess_native_packages = native_libmultiprocess native_capnp