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-rw-r--r--include/cityhash.h50
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diff --git a/include/cityhash.h b/include/cityhash.h
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index 61c9f8bf8773..000000000000
--- a/include/cityhash.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-License-Identifier: MIT
-//
-// Copyright (c) 2011 Google, Inc.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-
-/*
- * Copyright (c) 2017 by Delphix. All rights reserved.
- */
-
-#ifndef _SYS_CITYHASH_H
-#define _SYS_CITYHASH_H extern __attribute__((visibility("default")))
-
-#include <sys/zfs_context.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * Define 1/2/3-argument specialized versions of cityhash4, which can reduce
- * instruction count (especially multiplication) on some 32-bit arches.
- */
-_SYS_CITYHASH_H uint64_t cityhash1(uint64_t);
-_SYS_CITYHASH_H uint64_t cityhash2(uint64_t, uint64_t);
-_SYS_CITYHASH_H uint64_t cityhash3(uint64_t, uint64_t, uint64_t);
-_SYS_CITYHASH_H uint64_t cityhash4(uint64_t, uint64_t, uint64_t, uint64_t);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _SYS_CITYHASH_H */