### What does this PR do?
This changes proposal according to https://github.com/eclipse/che/issues/11907 provide temporary fix that checks opened file in editor and if the current file has .go extension, then refactoring feature _rename_ will be unavailable. This method has to be removed when refactoring rename operation will be resolved by library (go) provider.
Signed-off-by: Vladyslav Zhukovskyi <vzhukovs@redhat.com>
### What issues does this PR fix or reference?
#11907
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#### Release Notes
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#### Docs PR
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Roman Iuvshyn