Remove PLATFORM(BLACKBERRY) support.

Source/WTF/wtf/text/WTFString.h

Index: Source/WTF/wtf/text/WTFString.h
diff --git a/Source/WTF/wtf/text/WTFString.h b/Source/WTF/wtf/text/WTFString.h
index 9c0fc27fe3807b8a4d0658ab7f13719c26abab8c..2eb79f7e36d99677a163412a450869b64c533a2e 100644
--- a/Source/WTF/wtf/text/WTFString.h
+++ b/Source/WTF/wtf/text/WTFString.h
@@ -42,14 +42,6 @@ QT_END_NAMESPACE
 class wxString;
 #endif
 
-#if PLATFORM(BLACKBERRY)
-namespace BlackBerry {
-namespace Platform {
-class String;
-}
-}
-#endif
-
 namespace WTF {
 
 class CString;
@@ -437,11 +429,6 @@ public:
     WTF_EXPORT_PRIVATE operator wxString() const;
 #endif
 
-#if PLATFORM(BLACKBERRY)
-    String(const BlackBerry::Platform::String&);
-    operator BlackBerry::Platform::String() const;
-#endif
-
     WTF_EXPORT_STRING_API static String make8BitFrom16BitSource(const UChar*, size_t);
     template<size_t inlineCapacity>
     static String make8BitFrom16BitSource(const Vector<UChar, inlineCapacity>& buffer)