QRingBuffer::reserve(): remove superfluous assert

'bytes' is checked against MaxByteArraySize in the beginning and
remains unchanged in the function.

Change-Id: Ibd4091b95837db16cf45f845d485bfb189317125
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/tools/qringbuffer.cpp

@@ -132,7 +132,6 @@ char *QRingBuffer::reserve(qint64 bytes)
 
     char *writePtr = buffers.last().data() + tail;
     bufferSize += bytes;
-    Q_ASSERT(bytes < MaxByteArraySize);
     tail += int(bytes);
     return writePtr;
 }