Remove obsolete API after qtdeclarative migrated

This is a follow-up to commit b7d073e990,
which refactored memory allocation of QMetaCallEvent.

Change-Id: I363256c80ee941b545e6f9c659c65556fff5c907
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

src/corelib/kernel/qobject.cpp

@@ -524,28 +524,6 @@ inline void QMetaCallEvent::allocArgs()
     d.args_ = static_cast<void **>(memory);
 }
 
-/*!
-    \internal
-
-    Only used by QtDeclarative - to be removed when migrated.
- */
-QMetaCallEvent::QMetaCallEvent(ushort method_offset, ushort method_relative,
-                               QObjectPrivate::StaticMetaCallFunction callFunction,
-                               const QObject *sender, int signalId,
-                               int nargs, int *types_, void **args_)
-    : QAbstractMetaCallEvent(sender, signalId),
-      d({nullptr, nullptr, callFunction, nargs, method_offset, method_relative}),
-      prealloc_()
-{
-    allocArgs();
-    for (int arg = 0; arg < nargs; ++arg) {
-        types()[arg] = types_[arg];
-        args()[arg] = args_[arg];
-    }
-    free(types_);
-    free(args_);
-}
-
 /*!
     \internal
 

src/corelib/kernel/qobject_p.h

@@ -509,12 +509,6 @@ private:
 class Q_CORE_EXPORT QMetaCallEvent : public QAbstractMetaCallEvent
 {
 public:
-    // kept for compatibility until QtDeclarative has moved over
-    QMetaCallEvent(ushort method_offset, ushort method_relative,
-                   QObjectPrivate::StaticMetaCallFunction callFunction,
-                   const QObject *sender, int signalId,
-                   int nargs, int *types, void **args);
-
     // blocking queued with semaphore - args always owned by caller
     QMetaCallEvent(ushort method_offset, ushort method_relative,
                    QObjectPrivate::StaticMetaCallFunction callFunction,