Minor clean-up.

modules/juce_audio_basics/midi/juce_MidiMessage.cpp

@@ -658,7 +658,7 @@ String MidiMessage::getTextFromTextMetaEvent() const
                    CharPointer_UTF8 (textData + getMetaEventLength()));
 }
 
-MidiMessage MidiMessage::textMetaEvent (int type, const StringRef& text)
+MidiMessage MidiMessage::textMetaEvent (int type, StringRef text)
 {
     jassert (type > 0 && type < 16)
 

modules/juce_audio_basics/midi/juce_MidiMessage.h

@@ -539,7 +539,7 @@ public:
     String getTextFromTextMetaEvent() const;
 
     /** Creates a text meta-event. */
-    static MidiMessage textMetaEvent (int type, const StringRef& text);
+    static MidiMessage textMetaEvent (int type, StringRef text);
 
     //==============================================================================
     /** Returns true if this is a 'tempo' meta-event.