python: use built-in libffi lib for host build

Python comes with it's own builtin libffi lib, which
seems easier to use for the host build, than trying
to use the one from the package feeds.

Also, dropping `005-fix-libffi-x86-64-configure.patch`
Not needed anymore.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

lang/python/Makefile

@@ -36,7 +36,7 @@ PKG_BUILD_DIR:=$(BUILD_DIR)/Python-$(PKG_VERSION)
 HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/Python-$(PKG_VERSION)
 
 PKG_BUILD_DEPENDS:=python/host
-HOST_BUILD_DEPENDS:=bzip2/host expat/host libffi/host
+HOST_BUILD_DEPENDS:=bzip2/host expat/host
 
 include $(INCLUDE_DIR)/host-build.mk
 include $(INCLUDE_DIR)/package.mk
@@ -239,7 +239,7 @@ HOST_CONFIGURE_ARGS+= \
 	--prefix=$(HOST_PYTHON_DIR) \
 	--exec-prefix=$(HOST_PYTHON_DIR) \
 	--with-system-expat=$(STAGING_DIR_HOSTPKG) \
-	--with-system-ffi \
+	--with-system-ffi=no \
 	CONFIG_SITE=
 
 define Host/Install

lang/python/patches/005-fix-libffi-x86-64-configure.patch

@@ -1,31 +0,0 @@
-diff --git a/Modules/_ctypes/libffi/configure b/Modules/_ctypes/libffi/configure
-index 75f62a7..4d6c9f2 100755
---- a/Modules/_ctypes/libffi/configure
-+++ b/Modules/_ctypes/libffi/configure
-@@ -17257,20 +17257,12 @@ case "$host" in
- 	fi
- 	;;
- 
--  i?86-*-* | x86_64-*-*)
--	TARGETDIR=x86
--	if test $ac_cv_sizeof_size_t = 4; then
--	  case "$host" in
--	    *-gnux32)
--	      TARGET=X86_64
--	      ;;
--	    *)
--	      TARGET=X86
--	      ;;
--          esac
--	else
--	  TARGET=X86_64;
--	fi
-+  i?86-*-*)
-+	TARGET=X86; TARGETDIR=x86
-+	;;
-+
-+  x86_64-*-*)
-+	TARGET=X86_64; TARGETDIR=x86
- 	;;
- 
-   ia64*-*-*)