[BUG] Misleading presence of `normalize` keyword in `orthogonalize!`

Description of bug

Function orthogonalize! still accepts normalize keyword even though the normalization is not performed and no warning is printed. I saw the TODO, but while the maxdim is still used so the truncation is still performed, normalize is not used anymore.

Minimal code demonstrating the bug or unexpected behavior

julia> using ITensors, ITensorMPS

julia> s = siteinds("S=1/2",2)
2-element Vector{Index{Int64}}:
 (dim=2|id=429|"S=1/2,Site,n=1")
 (dim=2|id=23|"S=1/2,Site,n=2")

julia> ψ = MPS(s, ["0", "1"]) + MPS(s, ["1", "0"]);

julia> orthogonalize!(ψ, 1; normalize=true)
MPS
[1] ((dim=2|id=429|"S=1/2,Site,n=1"), (dim=2|id=332|"Link,l=1"))
[2] ((dim=2|id=23|"S=1/2,Site,n=2"), (dim=2|id=332|"Link,l=1"))


julia> norm(ψ) ≈ 1.
false

Expected output or behavior

Either obtaining the state normalized but with a depwarn or an unexpected keyword error.

Start by locating the orthogonalize! entry point and run the minimal Julia example from the issue to confirm that normalize=true has no effect. Check the surrounding tests or documentation for the keyword's intended behavior; done means the keyword either normalizes with a deprecation warning or is rejected as unexpected.