dist: disable sockets proxy by default for now

Mostly because the refactoring will break lots of things here.

dist/rules.mk

@@ -34,10 +34,10 @@ $(bin_net_sockets): $(SOCKETS_OBJS) $(COMMON_OBJS) -lpthread
 
 CLEAN := $(bin_net_rdma) $(bin_net_sockets) \
 	$(RDMA_OBJS) $(SOCKETS_OBJS) $(COMMON_OBJS)
-ALL := $(bin_net_sockets)
 
+ALL :=
 ifeq ($(ENABLE_DIST),y)
-ALL += $(bin_net_rdma)
+ALL += $(bin_net_sockets) $(bin_net_rdma)
 endif
 
 include mk/subdir_post.mk