Remove terrain limit warning text that no longer applies

files/settings-default.cfg

@@ -65,8 +65,6 @@ shader mode =
 enabled = false
 
 # Split the shadow maps, allows for a larger shadow distance
-# Warning: enabling this will cause some terrain textures to disappear due to
-# hitting the texture unit limit of the terrain material
 split = false
 
 # Increasing shadow distance will lower the shadow quality.