Clang-Tidy fixes (#6725)

(cherry picked from commit 3c501b963d)

test/testpower.c

@@ -54,8 +54,7 @@ report_power(void)
     if (seconds == -1) {
         SDL_Log("Time left: unknown\n");
     } else {
-        SDL_Log("Time left: %d minutes, %d seconds\n", (int)(seconds / 60),
-                (int)(seconds % 60));
+        SDL_Log("Time left: %d minutes, %d seconds\n", seconds / 60, seconds % 60);
     }
 }