Step 16: remove ToBoolStatement

lynglib/src/commonMain/kotlin/net/sergeych/lyng/statements.kt

@@ -439,15 +439,6 @@ class ThrowStatement(
     }
 }
 
-class ToBoolStatement(
-    val expr: Statement,
-    override val pos: Pos,
-) : Statement() {
-    override suspend fun execute(scope: Scope): Obj {
-        return if (expr.execute(scope).toBool()) net.sergeych.lyng.obj.ObjTrue else net.sergeych.lyng.obj.ObjFalse
-    }
-}
-
 class ExpressionStatement(
     val ref: net.sergeych.lyng.obj.ObjRef,
     override val pos: Pos