Do not change method if name does not need to change (#700)

Author: carlos-granados

rules/CodeQuality/Rector/ClassMethod/ActionSuffixRemoverRector.php

@@ -72,16 +72,18 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
-        $this->removeSuffix($node, 'Action');
-
-        return $node;
+        return $this->removeSuffix($node, 'Action');
     }
 
-    private function removeSuffix(ClassMethod $classMethod, string $suffixToRemove): void
+    private function removeSuffix(ClassMethod $classMethod, string $suffixToRemove): ?ClassMethod
     {
         $name = $this->nodeNameResolver->getName($classMethod);
 
         $newName = Strings::replace($name, sprintf('#%s$#', $suffixToRemove), '');
+        if ($newName === $name) {
+            return null;
+        }
         $classMethod->name = new Identifier($newName);
+        return $classMethod;
     }
 }