Refactor switch cases to use break statements instead of commented code

src/client/component/steam_proxy.cpp

@@ -203,14 +203,12 @@ namespace steam_proxy
 			{
 			case ownership_state::success:
 				break;
-			/*
 			case ownership_state::nosteam:
-				throw std::runtime_error("Steam must be running to play this game!");
+				break;
 			case ownership_state::unowned:
-				throw std::runtime_error("You must own the game on steam to play this mod!");
+				break;
 			case ownership_state::error:
-				throw std::runtime_error("Failed to verify ownership of the game!");
-			*/
+				break;
 			}
 #endif
 		}