Update Paths.php

Hello, i just add a method if we want to remove one or many paths from the docs.

src/OpenApi/Model/Paths.php

@@ -31,4 +31,9 @@ public function getPaths(): array
     {
         return $this->paths ?? [];
     }
+
+    public function removePath(string $path)
+    {
+        unset($this->paths[$path]);
+    }
 }