Remove utils/archive. It is not used at this point.

utils/archive/Makefile

Index: utils/archive/Makefile
diff --git a/utils/archive/Makefile b/utils/archive/Makefile
deleted file mode 100644
index 6e1892cc7ffc304be9b5b0f6a026dc08f1a47a94..0000000000000000000000000000000000000000
--- a/utils/archive/Makefile
+++ /dev/null
@@ -1,26 +0,0 @@
-# Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-# for details. All rights reserved. Use of this source code is governed by a
-# BSD-style license that can be found in the LICENSE file.
-
-# TODO(nweiz): replace this with a .gypi file
-
-CC = gcc
-CFLAGS = -fPIC -m32 -I ../../runtime/include/ -g
-LDFLAGS = -shared -m32 -g -larchive -Wl,-soname,libdart_archive.so
-
-all: libdart_archive.so
-
-libdart_archive.so: dart_archive.o entry.o messaging.o reader.o
-	$(CC) $(LDFLAGS) -o $@ dart_archive.o entry.o messaging.o reader.o
-
-dart_archive.o: dart_archive.c dart_archive.h
-	$(CC) $(CFLAGS) -c $<
-
-entry.o: entry.c entry.h messaging.h dart_archive.h
-	$(CC) $(CFLAGS) -c $<
-
-messaging.o: messaging.c messaging.h dart_archive.h
-	$(CC) $(CFLAGS) -c $<
-
-reader.o: reader.c reader.h entry.h messaging.h dart_archive.h
-	$(CC) $(CFLAGS) -c $<