Eliminate the empty expansions

[mbruzek]

While working on the code, I noticed the file lists/acronyms.json contains 23 expansions that are empty.

Such as:

  {
    "abbreviation": "ATM", 
    "source_id": 8, 
    "acronym_id": 1582, 
    "expansion": "", 
    "source": "MAF-SMA"
  },
...
  {
    "abbreviation": "VHDL", 
    "source_id": 8, 
    "acronym_id": 512, 
    "expansion": "", 
    "source": "MAF-SMA"
  },

They all seem to be from the "MAF-SMA" source. I don't see any others with empty acronyms.

I can make a pull request that removes these 23 empty expansions, but I suspect they have expansions but there was a problem with ingest from that source. This lists/acronyms.json file is generated from other sources. If we delete these 23, they will come back in future generations.

Investigate the ingest from the MAF-SMA source for potential problems.