Remove the now unused editing/mac

Source/WebCore/editing/mac/TextAlternativeWithRange.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.
- */
-#import "config.h"
-#import "TextAlternativeWithRange.h"
-
-#if USE(DICTATION_ALTERNATIVES)
-#import <AppKit/NSTextAlternatives.h>
-
-namespace WebCore {
-
-TextAlternativeWithRange::TextAlternativeWithRange(NSTextAlternatives* anAlternatives, NSRange aRange)
-: range(aRange)
-, alternatives(anAlternatives)
-{
-}
-
-void collectDictationTextAlternatives(NSAttributedString *string, Vector<TextAlternativeWithRange>& alternatives) {
-    NSRange effectiveRange = NSMakeRange(0, 0);
-    NSUInteger length = [string length];
-    do {
-        NSDictionary *attributes = [string attributesAtIndex:effectiveRange.location effectiveRange:&effectiveRange];
-        if (!attributes)
-            break;
-        NSTextAlternatives *textAlternatives = [attributes objectForKey:NSTextAlternativesAttributeName];
-        if (textAlternatives)
-            alternatives.append(TextAlternativeWithRange(textAlternatives, effectiveRange));
-        effectiveRange.location = NSMaxRange(effectiveRange);
-    } while (effectiveRange.location < length);
-}
-}
-#endif