Fix tests not to duplicate array constructor definitions as they are available now in builtins.

compiler/testData/diagnostics/tests/labels/kt1703.kt

@@ -1,6 +1,3 @@
-// !DIAGNOSTICS: -UNUSED_PARAMETER
-public inline fun <reified T> Array(n: Int, block: (Int) -> T): Array<T> = null!!
-
 //KT-1703 Reference to label is unresolved
 
 fun test() {

compiler/testData/diagnostics/tests/labels/kt1703.txt

@@ -1,6 +1,5 @@
 package
 
-public inline fun </*0*/ reified T> Array(/*0*/ n: kotlin.Int, /*1*/ block: (kotlin.Int) -> T): kotlin.Array<T>
 public fun test(): kotlin.Unit
 public fun use(/*0*/ a: kotlin.Any?): kotlin.Any?
 public fun </*0*/ T> kotlin.Array<out T>.forEach(/*0*/ operation: (T) -> kotlin.Unit): kotlin.Unit