File memkind-fix-build.diff of Package memkind

We build with --disable-static, but the Makefile isn't completely
prepared for that, this removes the remaining hard-coded reference to
the static lib.
Index: memkind-1.9.0/Makefile.am
===================================================================
--- memkind-1.9.0.orig/Makefile.am	2019-04-08 11:09:06.000000000 +0200
+++ memkind-1.9.0/Makefile.am	2019-12-10 15:26:50.000000000 +0100
@@ -421,7 +421,6 @@ memkind-$(VERSION).spec:
 rpm: dist
 	$(MAKE) version="$(VERSION)" -f memkind.spec.mk $@
 
-all: static_lib
 
 # the script merge memkind and jemalloc libraries into one static library.
 define ar_prog