Fix CodeBuilder create Let/Set code block issue

[BZngr]

This PR fixes a CodeBuilder latent bug regarding the creation of Property Let/Set code block(s) based on a Property Let/Set prototype.

MCVE:

'Use as a prototype for CodeBuilder to generate a Property Set member
Public Property Let Test(ByVal RHS Variant)
End Property

yields a Property Set with a duplicated Value parameter:

Public Property Set Test(ByVal RHS Variant, ByVal RHS Variant)
	Err.Raise 5					'TODO: Implement member
End Property

[rubberduck-vba-releasebot]

✅ Build Rubberduck 2.5.2.6191 completed (commit 44d601795a by @BZngr)