Psi2ir: do not sort descriptors for fake override generation

Descriptors are already supposed to be sorted in scopes. The problem is
that rendering descriptors for sorting takes a lot of time (~1.5% of
total compilation time of intellij with JVM IR), and simple heuristics,
like comparing by names first, don't fully help with it.

 #KT-48233

compiler/testData/ir/irText/firProblems/DelegationAndInheritanceFromJava.kt.txt

@@ -6,6 +6,11 @@ class Impl : A, B {
   }
 
   private /* final field */ val $$delegate_0: B = b
+  override val size: Int
+    override get(): Int {
+      return <this>.#$$delegate_0.<get-size>()
+    }
+
   override fun add(element: @FlexibleNullability String?): Boolean {
     return <this>.#$$delegate_0.add(element = element)
   }
@@ -46,14 +51,8 @@ class Impl : A, B {
     return <this>.#$$delegate_0.retainAll(elements = elements)
   }
 
-  override val size: Int
-    override get(): Int {
-      return <this>.#$$delegate_0.<get-size>()
-    }
-
 }
 
 fun box(): String {
   return "OK"
 }
-