Revert "Require unix-utils in path for windows make"

This reverts commit 5d46cca09a380410965cc65568a5fafbc2658e2e.

In preparation of merging an external contribution that superseedes this

Conflicts:
	ChangeLog
diff --git a/library/Makefile b/library/Makefile
index 9a4c3fd..d92d803 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -80,7 +80,11 @@
 
 libpolarssl.a: libmbedtls.a
 	echo "  LN    $@ -> $?"
+ifndef WINDOWS
 	ln -sf $? $@
+else
+	copy /y /b $? $@
+endif
 
 libmbedtls.a: $(OBJS)
 	echo "  AR    $@"
@@ -90,7 +94,11 @@
 
 libpolarssl.so: libmbedtls.so
 	echo "  LN    $@ -> $?"
+ifndef WINDOWS
 	ln -sf $? $@
+else
+	copy /y /b $? $@
+endif
 
 libmbedtls.${DLEXT}: $(OBJS)
 	echo "  LD    $@"
@@ -113,4 +121,9 @@
 	$(CC) $(CFLAGS) $(OFLAGS) -c $<
 
 clean:
+ifndef WINDOWS
 	rm -f *.o libpolarssl.* libmbedtls.*
+endif
+ifdef WINDOWS
+	del /Q /F *.o libpolarssl.* libmbedtls.*
+endif