Consider this code example:

    if (condition) {
        return value1
    } else {
        do something
        do somethingElse
        etc
        etc
    }

Since the if block exits unconditionally, the else may be pruned and the code then becomes:

    if (condition1) {
        return value1
    }

    do something
    do somethingElse
    etc
    etc

This rule will only trigger if the number of statements in the else block is greater than or equal to a certain threshold, which is configurable (it is 5 by default).