Remove MultiSub logic from the Default PMC find_method vtable function. This  logic is also coded in MultiSub.invoke(), so it's safe to remove here. Because if we *are* actually calling the method at this time, invoking the MultiSub has the same effect.
Remove MultiSub logic from the Default PMC find_method vtable function. This 
logic is also coded in MultiSub.invoke(), so it's safe to remove here. Because
if we *are* actually calling the method at this time, invoking the MultiSub has
the same effect.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@15781 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

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