Revert "Simple workaround for problem described in KT-6437"

This reverts commit 34d408eb7b.

js/js.translator/testData/webDemoExamples2/cases/life.kt

@@ -16,10 +16,7 @@ class Field(
         // if init(i, j) is true, the cell (i, j) is alive
         init: (Int, Int) -> Boolean
 ) {
-    private val live: Array<Array<Boolean>>
-    init {
-        live = Array(height) { i -> Array(width) { j -> init(i, j) } }
-    }
+    private val live: Array<Array<Boolean>> = Array(height) { i -> Array(width) { j -> init(i, j) } }
 
     private fun liveCount(i: Int, j: Int)
             = if (i in 0..height - 1 &&