Revert "Cocoa: fix single punctuation input via CJK input method"

This change makes a regression.

This reverts commit a79f8a3a67.

Task-number: QTBUG-36033
Change-Id: Ibcb19cd8631f85c81433c9625bbbf280404db1c4
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

src/plugins/platforms/cocoa/qnsview.mm

@@ -1346,6 +1346,11 @@ static QTabletEvent::TabletDevice wacomTabletDevice(NSEvent *theEvent)
 {
     Q_UNUSED(replacementRange)
 
+    if (m_sendKeyEvent && m_composingText.isEmpty()) {
+        // don't send input method events for simple text input (let handleKeyEvent send key events instead)
+        return;
+    }
+
     QString commitString;
     if ([aString length]) {
         if ([aString isKindOfClass:[NSAttributedString class]]) {