Meta+Kernel: Make clang-format-10 clean

Author: https://github.com/BenWiederhake
Commit: 64cc3f51d0
Pull-request: https://github.com/SerenityOS/serenity/pull/3541
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/linusg

Kernel/VM/PhysicalPage.h

@@ -67,7 +67,7 @@ public:
 
 private:
     PhysicalPage(PhysicalAddress paddr, bool supervisor, bool may_return_to_freelist = true);
-    ~PhysicalPage() {}
+    ~PhysicalPage() { }
 
     void return_to_freelist() const;