build: allow libitcoinkernel dll builds now that exports are fixed

Symbol visibility issues are not actually fixed yet because we have not yet
defined an api and exported symbols, but everything is now in place for that.

Author: theuni

src/Makefile.am

@@ -879,15 +879,6 @@ libbitcoinkernel_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(builddir)/obj -I$(srcdir)/secp
 # to export from the library.
 libbitcoinkernel_la_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) -fvisibility=default
 
-# TODO: For now, Specify -static in both CXXFLAGS and LDFLAGS when building for
-#       windows targets so libtool will only build a static version of this
-#       library. There are unresolved problems when building dll's for mingw-w64
-#       and attempting to statically embed libstdc++, libpthread, etc.
-if TARGET_WINDOWS
-libbitcoinkernel_la_LDFLAGS += -static
-libbitcoinkernel_la_CXXFLAGS += -static
-endif
-
 # TODO: libbitcoinkernel is a work in progress consensus engine library, as more
 #       and more modules are decoupled from the consensus engine, this list will
 #       shrink to only those which are absolutely necessary.