Minor. removed functions which declared in Standard.kt from diagnostic testdata.

Removed declaration for functions: TODO, run, with, apply, let.

compiler/testData/diagnostics/tests/extensions/extensionMemberInClassObject.kt

@@ -16,5 +16,3 @@ fun main(args: Array<String>) {
         findByName("")
     }
 }
-
-fun <T> with(t: T, f: T.() -> Unit) {}

compiler/testData/diagnostics/tests/extensions/extensionMemberInClassObject.txt

@@ -1,7 +1,6 @@
 package
 
 public fun main(/*0*/ args: kotlin.Array<kotlin.String>): kotlin.Unit
-public fun </*0*/ T> with(/*0*/ t: T, /*1*/ f: T.() -> kotlin.Unit): kotlin.Unit
 
 public final class Foo {
     public constructor Foo()