[AA] Shortener: change test data

Remove ON_AIR_CONTEXT_CARET_TAG where it's not necessary

analysis/analysis-api/testData/components/referenceShortener/referenceShortenerWholeFile/fileWithKDoc.kt

@@ -4,7 +4,7 @@
  * [a.b.c.dependency.Foo]
  * [a.b.c.dependency.Foo.Nested]
  */
-fun foo<caret_onAirContext>(): a.b.c.dependency.Foo = t
+fun foo<caret>(): a.b.c.dependency.Foo = t
 
 // FILE: dependency.kt
 package a.b.c.dependency

analysis/analysis-api/testData/components/referenceShortener/referenceShortenerWholeFile/fileWithMultipleDeclarations.kt

@@ -1,4 +1,4 @@
-class A<caret_onAirContext> {
+class A<caret> {
     abstract class B {
         abstract val b: A.B
     }