Remove more libsnark stuff from the build system

src/Makefile.am

@@ -65,15 +65,6 @@ endif
 $(LIBSECP256K1): $(wildcard secp256k1/src/*) $(wildcard secp256k1/include/*)
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F) OPTFLAGS="-O2 -march=x86-64 -g "
 
-LIBSNARK_CXXFLAGS = $(AM_CXXFLAGS) $(PIC_FLAGS) -DBINARY_OUTPUT -DNO_PT_COMPRESSION=1 -fstack-protector-all
-LIBSNARK_CONFIG_FLAGS = CURVE=ALT_BN128 NO_PROCPS=1 NO_DOCS=1 STATIC=1 NO_SUPERCOP=1 FEATUREFLAGS=-DMONTGOMERY_OUTPUT NO_COPY_DEPINST=1 NO_COMPILE_LIBGTEST=1
-if HAVE_OPENMP
-LIBSNARK_CONFIG_FLAGS += MULTICORE=1
-endif
-if TARGET_DARWIN
-LIBSNARK_CONFIG_FLAGS += PLATFORM=darwin
-endif
-
 $(LIBUNIVALUE): $(wildcard univalue/lib/*)
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C $(@D) $(@F) OPTFLAGS="-O2 -march=x86-64 -g "
 
@@ -520,7 +511,6 @@ komodod_LDADD = \
   $(LIBBITCOIN_PROTON) \
   $(LIBBITCOIN_CRYPTO) \
   $(LIBZCASH) \
-  $(LIBSNARK) \
   $(LIBLEVELDB) \
   $(LIBMEMENV) \
   $(LIBSECP256K1) \
@@ -605,7 +595,6 @@ wallet_utility_LDADD = \
 	$(BDB_LIBS) \
 	$(CRYPTO_LIBS) \
 	$(LIBZCASH) \
-	$(LIBSNARK) \
 	$(LIBZCASH_LIBS)\
   $(LIBCRYPTOCONDITIONS)
 endif
@@ -627,7 +616,6 @@ komodo_tx_LDADD = \
   $(LIBBITCOIN_UTIL) \
   $(LIBSECP256K1) \
   $(LIBZCASH) \
-  $(LIBSNARK) \
   $(LIBBITCOIN_CRYPTO) \
   $(LIBZCASH_LIBS) \
   $(LIBCRYPTOCONDITIONS)

src/Makefile.zcash.include

@@ -20,7 +20,6 @@ zcash_CreateJoinSplit_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 zcash_CreateJoinSplit_LDADD = \
   $(LIBBITCOIN_COMMON) \
   $(LIBZCASH) \
-  $(LIBSNARK) \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
   $(BOOST_LIBS) \