Now that 1.35 is released, we only need to maintain support for MW 1.34 and MW 1.35 (and master branch)
It will be good to do this before MLEB 2020.10 release to take advantage of the pre-release testing.
Code health is slightly improved by removal of code that is no longer necessary.
- Backward compatible code for older versions of MW were removed from the Translate extension.
- Translate (and by extension MLEB 2020.10 as a whole and beyond) will only support MW >= 1.34
- Other extension individually will continue to work with older versions of MW.