[IR] update testdata after using maxBlankLines=1 for Printer

compiler/testData/ir/irText/declarations/genericDelegatedProperty.kt.txt

@@ -5,9 +5,6 @@ class C<T : Any?> {
 
   }
 
-
-
-
 }
 
 object Delegate {
@@ -24,9 +21,6 @@ object Delegate {
   operator fun setValue(thisRef: Any?, kProp: Any?, newValue: Int) {
   }
 
-
-
-
 }
 
 var <T : Any?> C<T>.genericDelegatedProperty: Int /* by */