Revert of Unicode Variation Selectors support in collectCandidateRuns

Source/platform/fonts/Character.h

Index: Source/platform/fonts/Character.h
diff --git a/Source/platform/fonts/Character.h b/Source/platform/fonts/Character.h
index eeffbc68ee348496f5b436a679f83769dea155a9..b2a76fe5ceb69ebd3e487344597e32da0f04c486 100644
--- a/Source/platform/fonts/Character.h
+++ b/Source/platform/fonts/Character.h
@@ -49,14 +49,6 @@
     static inline bool isInRange(UChar32 character, UChar32 lowerBound, UChar32 upperBound)
     {
         return character >= lowerBound && character <= upperBound;
-    }
-
-    static inline bool isUnicodeVariationSelector(UChar32 character)
-    {
-        // http://www.unicode.org/Public/UCD/latest/ucd/StandardizedVariants.html
-        return isInRange(character, 0x180B, 0x180D) // MONGOLIAN FREE VARIATION SELECTOR ONE to THREE
-            || isInRange(character, 0xFE00, 0xFE0F) // VARIATION SELECTOR-1 to 16
-            || isInRange(character, 0xE0100, 0xE01EF); // VARIATION SELECTOR-17 to 256
     }
 
     static bool isCJKIdeograph(UChar32);