Don't add unwrap(spaces/indexing/structure)

Author: jishnub

src/Operators/Operator.jl

@@ -751,9 +751,6 @@ macro wrapper(Wrap, forwarddomain = true, forwardrange = true)
 end
 
 unwrap(A::Operator) = iswrapper(A) ? A.op : A
-unwrapstructure(A::Operator) = iswrapperstructure(A) ? A.op : A
-unwrapindexing(A::Operator) = iswrapperindexing(A) ? A.op : A
-unwrapspace(A::Operator) = iswrapperspace(A) ? A.op : A
 
 ## Standard Operators and linear algebra