Remove all of WebCore/platform/mac which is not mentioned in WebCore.gypi.

Source/WebCore/platform/mac/SystemVersionMac.mm

-/*
- * Copyright (C) 2012 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "SystemVersionMac.h"
-
-namespace WebCore {
-
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-
-static NSString *createSystemMarketingVersion()
-{
-    // Can't use -[NSProcessInfo operatingSystemVersionString] because it has too much stuff we don't want.
-    NSString *systemLibraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSSystemDomainMask, YES) objectAtIndex:0];
-    NSString *systemVersionPlistPath = [systemLibraryPath stringByAppendingPathComponent:@"CoreServices/SystemVersion.plist"];
-    NSDictionary *systemVersionInfo = [NSDictionary dictionaryWithContentsOfFile:systemVersionPlistPath];
-    return [[systemVersionInfo objectForKey:@"ProductVersion"] copy];
-}
-
-#else
-
-static inline int callGestalt(OSType selector)
-{
-    SInt32 value = 0;
-    Gestalt(selector, &value);
-    return value;
-}
-
-static NSString *createSystemMarketingVersion()
-{
-    // Can't use -[NSProcessInfo operatingSystemVersionString] because it has too much stuff we don't want.
-    int major = callGestalt(gestaltSystemVersionMajor);
-    ASSERT(major);
-
-    int minor = callGestalt(gestaltSystemVersionMinor);
-    int bugFix = callGestalt(gestaltSystemVersionBugFix);
-    if (bugFix)
-        return [[NSString alloc] initWithFormat:@"%d.%d.%d", major, minor, bugFix];
-    if (minor)
-        return [[NSString alloc] initWithFormat:@"%d.%d", major, minor];
-    return [[NSString alloc] initWithFormat:@"%d", major];
-}
-
-#endif // __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-
-
-NSString *systemMarketingVersion()
-{
-    static NSString *version = createSystemMarketingVersion();
-    return version;
-}
-
-}