[test-data] remove energy-levelsto pass the test

Author: BangShiuh

test/data/air-plasma.yaml

@@ -13,8 +13,6 @@ phases:
   state: {T: 300.0, P: 1 atm, X: {O2: 0.21, N2: 0.79}}
   electron-energy-distribution:
     type: Boltzmann-two-term
-    energy-levels: [0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0, 16.0, 18.0, 20.0, 22.0,
-      24.0, 26.0, 28.0, 30.0, 32.0, 34.0, 36.0, 38.0, 40.0]
 
 reactions:
 - equation: O2 + Electron => Electron + Electron + O2+