If you are not dosing anything, that calcium will not hurt anything, except for faster scaling onto pumps, etc. I would not do anything (nor am I aware of a specific lowering technique to be used).
However, if you are dosing, there are 3 ways to lower it;
1. Add LESS calcium (easiest and cheapest method).
2. Add LESS magnesium. That will allow more calcium and carbonate to form and precipitate, lowering BOTH calcium and Alk
3. Add MORE carbonate/bicarbonate or Alk
additive. That will again allow for more precipitate, and lower BOTH Calcium and magnesium levels.
The third option is possible if you are not currently dosing and are considering starting. Your Alk
is a wee bit low, and could use some, but if your corals are growing nicely, I probably wouldn't start dosing. If it ain't broke...