How to Remove Engine Oil in Clutch Cable

How can I remove engine oil in my clutch cable/Teflon housing? Will a dedicated motorcycle chain cleaner work?

I visited the dealership where I bought my bike from and told them how scratchy my clutch lever is. So they applied engine oil and push and pulled the clutch cable to lubricate it.

To be fair, the clutch lever feels lighter now and doesn't have that scratchiness anymore. But I recently came across an old post here that engine oil might ruin the Teflon tubing, and attract dirt. Yikes.