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GH-36560: [MATLAB] Remove the DeepCopy name-value pair from `arrow.array.<Numeric>Array` constructors (#36561)


### Rationale for this change

We initially added the `DeepCopy` name-value pair to the numeric array class constructors for testing purposes. When `DeepCopy=true`, the proxy classes copy the data from the MATLAB array when creating the underlying `std::shared_ptr<arrow::NumericArray<CType>>`. By default, we don't make a copy and instead store the original array as a property named `MatlabArray`. Doing so keeps the backing memory of the arrow array alive and avoids a copy.

### What changes are included in this PR?
`DeepCopy` is no longer accepted as a name-value pair by the constructors of the numeric array classes. 

### Are these changes tested?
No tests were needed.

### Are there any user-facing changes?

This is technically a user facing change, but the MATLAB interface is still experimental and under active development. We don't expect anyone to be affected by this change.

* Closes: #36560

Authored-by: Sarah Gilmore <sgilmore@mathworks.com>
Signed-off-by: Kevin Gurney <kgurney@mathworks.com>