PayPal co-founder Elon Musk wants to see the company he sold to eBay Inc (NASDAQ:EBAY) go solo once again, because he thinks the auction site that owns it is holding it back from real growth. “It doesn’t make sense that a global payment system is a subsidiary of an auction website. It’s as if Target Corporation (NYSE:TGT) owned Visa Inc (NYSE:V) or something,” said Musk, reports Steven Bertoni for Forbes. “[PayPal] will get cut to pieces by Amazon Payments, or by others like Apple Inc. (NASDAQ:AAPL) and by startups if it continues to be part of eBay.” When Musk and…