Remove extra semicolon while GCC being pedantic.

tools/assimp_view/MeshRenderer.cpp

@@ -161,4 +161,4 @@ int CMeshRenderer::DrawSorted(unsigned int iIndex,const aiMatrix4x4& mWorld) {
 
     return 1;
 }
-};
+}

tools/assimp_view/MessageProc.cpp

@@ -2143,7 +2143,7 @@ INT_PTR CALLBACK AboutMessageProc(HWND hwndDlg,UINT uMsg,
         }
     return FALSE;
     }
-};
+}
 
 using namespace AssimpView;