Removing a bunch of unused platform code.

Source/WTF/wtf/text/AtomicString.h

Index: Source/WTF/wtf/text/AtomicString.h
diff --git a/Source/WTF/wtf/text/AtomicString.h b/Source/WTF/wtf/text/AtomicString.h
index 265719f294307e6293f095cb8e9a681faa3d6523..512a90aae692be1c7cb56c0c8873450d1b57c94d 100644
--- a/Source/WTF/wtf/text/AtomicString.h
+++ b/Source/WTF/wtf/text/AtomicString.h
@@ -152,15 +152,6 @@ public:
     AtomicString(NSString* s) : m_string(add((CFStringRef)s)) { }
     operator NSString*() const { return m_string; }
 #endif
-#if PLATFORM(QT)
-    AtomicString(const QString& s) : m_string(add(String(s).impl())) { }
-    operator QString() const { return m_string; }
-#endif
-#if PLATFORM(BLACKBERRY)
-    AtomicString(const BlackBerry::Platform::String& s) : m_string(add(String(s).impl())) { }
-    operator BlackBerry::Platform::String() const { return m_string; }
-#endif
-
     // AtomicString::fromUTF8 will return a null string if
     // the input data contains invalid UTF-8 sequences.
     static AtomicString fromUTF8(const char*, size_t);