[DeadCode] Remove unreachable class-like checks in Class_ only rules

rules/DeadCode/Rector/ClassMethod/RemoveArgumentFromDefaultParentCallRector.php

@@ -104,7 +104,7 @@ public function refactor(Node $node): ?Class_
 
         $ancestors = array_filter(
             $classReflection->getAncestors(),
-            fn (ClassReflection $ancestorClassReflection): bool => $classReflection->isClass() && $ancestorClassReflection->getName() !== $classReflection->getName()
+            fn (ClassReflection $ancestorClassReflection): bool => $ancestorClassReflection->getName() !== $classReflection->getName()
         );
 
         $hasChanged = false;

rules/DeadCode/Rector/ClassMethod/RemoveUnusedPrivateMethodRector.php

@@ -143,15 +143,7 @@ public function refactor(Node $node): ?Node
 
     private function shouldSkip(ClassMethod $classMethod, ClassReflection $classReflection): bool
     {
-        // unreliable to detect trait, interface, anonymous class: doesn't make sense
-        if ($classReflection->isTrait()) {
-            return true;
-        }
-
-        if ($classReflection->isInterface()) {
-            return true;
-        }
-
+        // unreliable to detect anonymous class: doesn't make sense
         if ($classReflection->isAnonymous()) {
             return true;
         }

rules/TypeDeclaration/Rector/ClassMethod/ParamTypeByParentCallTypeRector.php

@@ -181,11 +181,7 @@ private function shouldSkip(ClassMethod $classMethod): bool
         }
 
         $classReflection = $this->reflectionResolver->resolveClassReflection($classMethod);
-        if (! $classReflection instanceof ClassReflection) {
-            return true;
-        }
-
-        return ! $classReflection->isClass();
+        return ! $classReflection instanceof ClassReflection;
     }
 
     private function isParamUsedInSpreadArg(ClassMethod $classMethod, Param $param): bool