Adjust testData: get rid of obsolete annotations

compiler/testData/serialization/builtinsSerializer/annotationTargets.kt

@@ -16,7 +16,7 @@ anno("extension property")
 val Double.p2: Double get() = null
 
 anno("top level class")
-class C1 [anno("constructor")] () {
+class C1 @anno("constructor") constructor() {
     anno("member function")
     fun f3(anno("member function parameter") p: Int) {}
 

compiler/testData/serialization/local/annotationsInLocalClass.kt

@@ -4,7 +4,7 @@ class A {
     annotation class Ann(val info: String)
 
     fun foo() {
-        [Ann("class")] class Local {
+        @Ann("class") class Local {
             Ann("fun") fun foo(): Local = this
             Ann("val") val x = foo()