FIR: Remove FirQualifiedAcces.safe in non-generated code

^KT-38444 In Progress

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -1006,11 +1006,7 @@ class FirRenderer(builder: StringBuilder, private val mode: RenderMode = RenderM
             }
         }
         if (hasSomeReceiver) {
-            if (qualifiedAccess.safe) {
-                print("?.")
-            } else {
-                print(".")
-            }
+            print(".")
         }
     }
 

compiler/fir/tree/src/org/jetbrains/kotlin/fir/expressions/impl/FirExpressionWithSmartcastImpl.kt

@@ -30,7 +30,6 @@ internal class FirExpressionWithSmartcastImpl(
 
     override val source: FirSourceElement? get() = originalExpression.source
     override val annotations: List<FirAnnotationCall> get() = originalExpression.annotations
-    override val safe: Boolean get() = originalExpression.safe
     override val typeArguments: List<FirTypeProjection> get() = originalExpression.typeArguments
     override val explicitReceiver: FirExpression? get() = originalExpression.explicitReceiver
     override val dispatchReceiver: FirExpression get() = originalExpression.dispatchReceiver
@@ -80,4 +79,4 @@ internal class FirExpressionWithSmartcastImpl(
     }
 
     override fun replaceTypeRef(newTypeRef: FirTypeRef) {}
-}
+}