linux-kernel - remove various unused set_memory_* related functions and exports

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Message-Id: <20190813090146.26377-1-hch@lst.de>
Date:   Tue, 13 Aug 2019 11:01:40 +0200
From:   Christoph Hellwig <hch@....de>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, x86@...nel.org
Cc:     Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: remove various unused set_memory_* related functions and exports

Hi all,

while looking into implementing a DMA memory allocator for PCIe unsnooped
transactions I've started looking at the set_memory_* and related APIs,
and it turns out that many of them are unused.  Fix for that below.