[FIR] CFG: drop redundant edges

Edges from class to its functions and nested classes are redundant
and lead to extra resolution work in lazy resolve mode

^KT-59600 Fixed

compiler/fir/analysis-tests/testData/resolveWithStdlib/initialization/fromLocalMembers.fir.txt

@@ -10,6 +10,7 @@ FILE: fromLocalMembers.kt
     public final fun test2(): R|kotlin/Unit| {
         lval x: R|kotlin/Int|
         lval y: R|kotlin/Int|
+        lval z: R|kotlin/Int|
         object : R|kotlin/Any| {
             private constructor(): R|<anonymous>| {
                 super<R|kotlin/Any|>()
@@ -23,6 +24,12 @@ FILE: fromLocalMembers.kt
                 R|<local>/y| = Int(0)
             }
 
+            public final val prop: R|kotlin/Int|
+                public get(): R|kotlin/Int| {
+                    R|<local>/z| = Int(0)
+                    ^ Int(2)
+                }
+
         }
 
         R|kotlin/io/println|(R|<local>/x|)

compiler/fir/analysis-tests/testData/resolveWithStdlib/initialization/fromLocalMembers.kt

@@ -12,6 +12,7 @@ fun test1() {
 fun test2() {
     val x: Int
     val y: Int
+    val z: Int
 
     object {
         init {
@@ -21,6 +22,12 @@ fun test2() {
         fun localFunc() {
             <!CAPTURED_VAL_INITIALIZATION!>y<!> = 0
         }
+
+        val prop: Int
+            get() {
+                <!CAPTURED_VAL_INITIALIZATION!>z<!> = 0
+                return 2
+            }
     }
 
     println(x)