Revert "Fix bug 1900 to populate WIM parameters and auto-select WIM when needed."

This reverts commit a4245861

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Reason for revert:

Parameter 'vnfd-connection-point-ref' from old NSD causes bug 2034.

Change-Id: I989c586069b133b9f6ee68927e77517b84fb9ecb
Signed-off-by: Gabriel Cuba <gcuba@whitestack.com>