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GH-36198: [Go] Remove deprecated equality checks (#36169)



### Rationale for this change

There are several deprecated comparison functions that have long been deprecated.
This PR unblocks the removal of those functions as nothing depends on them anymore.

Given the functions have been deprecated for a long time and might have been removed in v9, I removed them in this PR already, given this is for v13. 

### What changes are included in this PR?

### Are these changes tested?

Unit tests are passing locally. 

### Are there any user-facing changes?

Removal of old deprecated functions for comparing arrays. 

* Closes: #36198

Authored-by: Matthias Loibl <mail@matthiasloibl.com>
Signed-off-by: Matt Topol <zotthewizard@gmail.com>