[FIR] FirAnnotationBuilder: drop redundant buildAnnotationCopy

^KT-54417

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/expressions/builder/FirAnnotationBuilder.kt

@@ -62,17 +62,3 @@ inline fun buildAnnotation(init: FirAnnotationBuilder.() -> Unit): FirAnnotation
     }
     return FirAnnotationBuilder().apply(init).build()
 }
-
-@OptIn(ExperimentalContracts::class)
-inline fun buildAnnotationCopy(original: FirAnnotation, init: FirAnnotationBuilder.() -> Unit): FirAnnotation {
-    contract {
-        callsInPlace(init, kotlin.contracts.InvocationKind.EXACTLY_ONCE)
-    }
-    val copyBuilder = FirAnnotationBuilder()
-    copyBuilder.source = original.source
-    copyBuilder.useSiteTarget = original.useSiteTarget
-    copyBuilder.annotationTypeRef = original.annotationTypeRef
-    copyBuilder.argumentMapping = original.argumentMapping
-    copyBuilder.typeArguments.addAll(original.typeArguments)
-    return copyBuilder.apply(init).build()
-}

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/BuilderConfigurator.kt

@@ -118,10 +118,6 @@ object BuilderConfigurator : AbstractBuilderConfigurator<FirTreeBuilder>(FirTree
             withCopy()
         }
 
-        builder(annotation) {
-            withCopy()
-        }
-
         builder(receiverParameter) {
             withCopy()
         }