Delete this source restriction and commit change to cloud.

		>>> clc.v2.Server("WA1BTDIX01").PublicIPs().public_ips[0].source_restrictions[0].Delete().WaitUntilComplete()
		0

def Delete(self):
		"""Delete this source restriction and commit change to cloud.

		>>> clc.v2.Server("WA1BTDIX01").PublicIPs().public_ips[0].source_restrictions[0].Delete().WaitUntilComplete()
		0

		"""

		self.public_ip.source_restrictions = [o for o in self.public_ip.source_restrictions if o!=self]

		return(self.public_ip.Update())