Can I omit If() statements if they are only used to check a condition for a while() loop?

Saw this in a solved excercise. Isn't the while loop already a conditional? Is it better to use both the if block and the while loop even if I don't need a else statement afterwords?

int main(void) {
    int foo = 10;

    if (!foo) {
        while (!foo) {
            foo--;
        }
    }
    return 0;
}

I would write that code this way:

int main(void) {
    int foo = 10;

    while (!foo) {
        foo--;
    }
    return 0; 
}