Remove sys.dll on windows when running make dist, until related issues are solved (#8895, among others)

Author: staticfloat

Makefile

@@ -350,6 +350,9 @@ ifeq ($(JULIA_CPU_TARGET), native)
 endif
 
 ifeq ($(OS), WINNT)
+	# If we are running on WINNT, also delete sys.dll until it stops causing issues (#8895, among others)
+	-rm -f $(DESTDIR)$(private_libdir)/sys.$(SHLIB_EXT)
+
 	[ ! -d dist-extras ] || ( cd dist-extras && \
 		cp 7z.exe 7z.dll libexpat-1.dll zlib1.dll $(bindir) && \
 	    mkdir $(DESTDIR)$(prefix)/Git && \