Removed an accidentally-committed method from String

modules/juce_core/text/juce_String.h

@@ -1204,8 +1204,6 @@ public:
     */
     size_t copyToUTF32 (CharPointer_UTF32::CharType* destBuffer, size_t maxBufferSizeBytes) const noexcept;
 
-    static String fromSingleByteData (const void* data, size_t numBytes);
-
     //==============================================================================
     /** Increases the string's internally allocated storage.