Improve readability of devicemodel_remove() version-dependent definition

[EricccTaiwan]

The current implementation of devicemodel_remove() uses conditional compilation to switch the return type between void and int, as shown below:

#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 11, 0) 
static void devicemodel_remove(struct platform_device *dev) 
#else 
static int devicemodel_remove(struct platform_device *dev) 
#endif 
{
    pr_info("devicemodel example removed\n");

    /* Your device removal code */

#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 11, 0) 
    return 0; 
#endif
}

This approach works functionally, but it's not intuitive. The logic is split across multiple #if/#endif blocks, making it harder to read and maintain.
I propose replacing it with a clearer structure by splitting the entire function definition based on kernel version:

#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 11, 0)
static void devicemodel_remove(struct platform_device *dev)
{
    pr_info("devicemodel example removed\n");
    /* Your device removal code */
}
#else
static int devicemodel_remove(struct platform_device *dev)
{
    pr_info("devicemodel example removed\n");
    /* Your device removal code */
    return 0;
}
#endif

This makes the logic easier to understand and reduces potential confusion for future readers.
If this looks good, I can send a patch for it.