Remove ate-pairing, xbyak and libzerocash dependencies from the depends tree.

The ALT_BN128 curve does not need ate-pairing or xbyak.

Also, remove crypto++ dependency from libsnark.

depends/packages/ate-pairing.mk

@@ -1,17 +0,0 @@
-package=ate-pairing
-$(package)_version=0.1
-$(package)_download_path=https://github.com/herumi/$(package)/archive/
-$(package)_file_name=$(package)-$($(package)_git_commit).tar.gz
-$(package)_download_file=$($(package)_git_commit).tar.gz
-$(package)_sha256_hash=37c05b4a60653b912a0130d77ac816620890d65a51dd9629ed65c15b54c2d8e0
-$(package)_dependencies=xbyak libgmp
-
-$(package)_git_commit=dd7889f2881e66f87165fcd180a03cf659bcb073
-
-define $(package)_build_cmds
-  $(MAKE) -j SUPPORT_SNARK=1 INC_DIR='-I../include $($(package)_cppflags)' LIB_DIR='-L../lib $($(package)_ldflags)'
-endef
-
-define $(package)_stage_cmds
-  cp -rv include/ lib/ $($(package)_staging_dir)$(host_prefix)
-endef

depends/packages/libsnark.mk

@@ -6,7 +6,7 @@ $(package)_download_file=$($(package)_git_commit).tar.gz
 $(package)_sha256_hash=b5ec84a836d0d305407d5f39c8176bae2bb448abe802a8d11ba0f88f17e6d358
 $(package)_git_commit=69f312f149cc4bd8def8e2fed26a7941ff41251d
 
-$(package)_dependencies=crypto++ libgmp xbyak ate-pairing
+$(package)_dependencies=libgmp
 $(package)_patches=1_fix_Wl_flag.patch
 
 define $(package)_preprocess_cmds

depends/packages/libzerocash.mk

@@ -1,33 +0,0 @@
-package=libzerocash
-$(package)_download_path=https://github.com/Electric-Coin-Company/$(package)/archive/
-$(package)_file_name=$(package)-$($(package)_git_commit).tar.gz
-$(package)_download_file=$($(package)_git_commit).tar.gz
-$(package)_sha256_hash=1364a739751bcdda86cfd66d3d019844d116c374d7a7634bfb3e1a47c085f3c0
-$(package)_git_commit=dd5db5815be70f0e4895784cc905df6f1c73cb17
-
-$(package)_dependencies=libsnark crypto++ openssl boost libgmp
-$(package)_patches=
-
-# FIXME: How do we know, at the point where the _build_cms are run, that the
-# $(host_prefix)/include/libsnark folder is there? The lifecycle of that folder
-# is as follows:
-# 	1. First, the _stage_cmds of libsnark.mk create it in the staging directory.
-#	2. At some point in time, the depends system moves it from the staging
-#	   directory to the actual $(host_prefix)/include/libsnark directory.
-#
-# If (2) happens after the libzerocash_build_cmds get run, then what's in the
-# $(host_prefix)/include/libsnark directory will be an *old* copy of the
-# libsnark headers, and we might have to build twice in order for libzerocash to
-# get the changes. If (2) happens before, then all is well, and it works.
-#
-#                       ** Which is it? **
-#
-$(package)_cppflags += -I$(BASEDIR)/../src -I. -I$(host_prefix)/include -I$(host_prefix)/include/libsnark -DCURVE_ALT_BN128 -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -std=c++11 -pipe -O2 -O0 -g -Wstack-protector -fstack-protector-all -fPIE -fvisibility=hidden -fPIC
-
-define $(package)_build_cmds
-  $(MAKE) all DEPINST=$(host_prefix) CXXFLAGS="$($(package)_cppflags)" STATIC=1 MINDEPS=1 USE_MT=1 LINK_RT=1
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) install DEPINST=$(host_prefix) PREFIX=$($(package)_staging_dir)$(host_prefix) STATIC=1 MINDEPS=1 USE_MT=1
-endef

depends/packages/packages.mk

@@ -1,4 +1,4 @@
-zerocash_packages := libsnark crypto++ libgmp xbyak ate-pairing libzerocash
+zerocash_packages := libsnark crypto++ libgmp
 packages:=boost openssl $(zerocash_packages)
 native_packages := native_ccache native_comparisontool
 

depends/packages/xbyak.mk

@@ -1,17 +0,0 @@
-package=xbyak
-$(package)_version=0.1
-$(package)_download_path=https://github.com/herumi/$(package)/archive/
-$(package)_file_name=$(package)-$($(package)_git_commit).tar.gz
-$(package)_download_file=$($(package)_git_commit).tar.gz
-$(package)_sha256_hash=467a9037c29bc417840177f3ff5d76910d3f688f2f216dd86ced4a7ac837bfb0
-$(package)_dependencies=
-
-$(package)_git_commit=62fd6d022acd83209e2a5af8ec359a3a1bed3a50
-
-define $(package)_build_cmds
-  echo 'xbyak build is unnecessary for consumer ate-pairing.'
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) install PREFIX=$($(package)_staging_dir)$(host_prefix)
-endef