remove redundant semicolons

modules/gapi/src/compiler/gislandmodel.hpp

@@ -140,7 +140,7 @@ public:
     // FIXME: This thing will likely break stuff once we introduce
     // "multi-source streaming", a better design needs to be proposed
     // at that stage.
-    virtual void handleNewStream() {}; // do nothing here by default
+    virtual void handleNewStream() {} // do nothing here by default
 
     // This method is called for every IslandExecutable when
     // the stream-based execution is stopped.

modules/gapi/src/compiler/transactions.hpp

@@ -69,8 +69,8 @@ struct ChangeT
 {
     struct Base
     {
-        virtual void commit  (ade::Graph & ) {};
-        virtual void rollback(ade::Graph & ) {};
+        virtual void commit  (ade::Graph & ) {}
+        virtual void rollback(ade::Graph & ) {}
         virtual ~Base() = default;
     };