Refactoring in Codegen Tests

compiler/testData/codegen/multiDecl/forRange/explicitRangeToWithDot/MultiDeclFor.kt

@@ -32,7 +32,3 @@ fun box(): String {
     val s = doTest()
     return if (s == "1:2;2:3;3:4;") "OK" else "fail: $s"
 }
-
-fun main(args: Array<String>) {
-    println(box())
-}

compiler/testData/codegen/multiDecl/forRange/explicitRangeToWithDot/MultiDeclForComponentMemberExtensionsInExtensionFunction.kt

@@ -35,7 +35,3 @@ fun box(): String {
     val s = M().doTest()
     return if (s == "1:2;2:3;3:4;") "OK" else "fail: $s"
 }
-
-fun main(args: Array<String>) {
-    println(box())
-}