File no-remove-common.patch of Package rabbitmq-server

Index: Makefile
===================================================================
--- Makefile.orig
+++ Makefile
@@ -120,7 +120,6 @@ plugins:
 	mkdir -p $(PLUGINS_DIR)
 	PLUGINS_SRC_DIR="" $(MAKE) -C "$(PLUGINS_SRC_DIR)" plugins-dist PLUGINS_DIST_DIR="$(CURDIR)/$(PLUGINS_DIR)" VERSION=$(VERSION)
 	echo "Put your EZs here and use rabbitmq-plugins to enable them." > $(PLUGINS_DIR)/README
-	rm -f $(PLUGINS_DIR)/rabbit_common*.ez
 
 # add -q to remove printout of warnings....
 check-xref: $(BEAM_TARGETS) $(PLUGINS_DIR)