Harmonize getTcxonly_ivas_fx(), getTcxonly(), getTcxonly_fx()
# Bug description
In float, we currently have only one instance of `getTcxOnly()`, however, in BASOP, there are currently three different versions:
* `getTcxonly_ivas_fx()`
* `getTcxonly()`
* `getTcxonly_fx()`
Unless this is not possible, `getTcxonly_fx()` should be brought inline with the floating-point code, used throughout the BASOP code and the other instances should be removed.
This has to be a BE change.
issue