Don't filter out lz4 and looking_glass from dependency list

Now that dependencies are packaged as directories and not .ez
files, the fact that both LG and LZ4 are NIFs is no longer
an issue. And having it as regular dependencies simplifies
REPL-driven profiling.

Per discussion with @dumbbell.

deps/rabbit_common/mk/rabbitmq-dist.mk

@@ -152,8 +152,7 @@ $(error DIST_PLUGINS_LIST ($(DIST_PLUGINS_LIST)) is missing)
 endif
 
 $(eval $(foreach path, \
-  $(filter-out %/looking_glass %/lz4, \
-  $(sort $(shell cat $(DIST_PLUGINS_LIST))) $(CURDIR)), \
+  $(sort $(shell cat $(DIST_PLUGINS_LIST))) $(CURDIR), \
   $(call ez_target,$(if $(filter $(path),$(CURDIR)),$(PROJECT),$(notdir $(path))),$(path))))
 endif
 endif