Fold CSSParser::colorFromRGBColorString into only user

Source/core/css/parser/CSSParser.cpp

Index: Source/core/css/parser/CSSParser.cpp
diff --git a/Source/core/css/parser/CSSParser.cpp b/Source/core/css/parser/CSSParser.cpp
index 0c9c2bb2c90614d58c38172e88d69058325b0735..9673f8cd0d82282cec79e8ca8ed79ec40700cd0f 100644
--- a/Source/core/css/parser/CSSParser.cpp
+++ b/Source/core/css/parser/CSSParser.cpp
@@ -136,16 +136,6 @@ bool CSSParser::parseColor(RGBA32& color, const String& string, bool strict)
     return true;
 }
 
-StyleColor CSSParser::colorFromRGBColorString(const String& string)
-{
-    // FIXME: Rework css parser so it is more SVG aware.
-    RGBA32 color;
-    if (parseColor(color, string.stripWhiteSpace()))
-        return StyleColor(color);
-    // FIXME: This branch catches the string currentColor, but we should error if we have an illegal color value.
-    return StyleColor::currentColor();
-}
-
 bool CSSParser::parseSystemColor(RGBA32& color, const String& colorString)
 {
     CSSParserString cssColor;