Remove extra semi colon from oil/fbpkg_fuse/fs_item.cpp

Summary:
`-Wextra-semi` or `-Wextra-semi-stmt`

If the code compiles, this is safe to land.

Reviewed By: palmje

Differential Revision: D51995036

fbshipit-source-id: e66f8b9775b48e55c24118d5d7d455b4cf3eaca5

src/oomd/engine/BasePlugin.h

@@ -58,7 +58,7 @@ class BasePlugin {
    * because it is guaranteed to be called each interval, but run() may not.
    * Therefore, this function should be lightweight, i.e. no sleep() inside.
    */
-  virtual void prerun(OomdContext& context){};
+  virtual void prerun(OomdContext& context) {}
 
   /*
    * This is the main work method every plugin will implement.

src/oomd/util/ScopeGuard.h

@@ -32,13 +32,13 @@ class ScopeGuard {
  public:
   explicit ScopeGuard(std::function<void()> fn) {
     fn_ = fn;
-  };
+  }
 
   ~ScopeGuard() {
     if (fn_) {
       fn_();
     }
-  };
+  }
 
  private:
   std::function<void()> fn_;