Remove duplicate "skipped test" instruction

Already instructed in exercise 03

Author: mao-sz

07_reverseString/README.md

@@ -6,8 +6,5 @@ Pretty simple, write a function called `reverseString` that returns its input, r
 reverseString('hello there') // returns 'ereht olleh'
 ```
 
-You will notice in this exercise that there are multiple tests (in the file `reverseString.spec.js`). Currently, only the first test is enabled. After ensuring that the first test passes, enable the remaining tests one by one by removing the `.skip` from the `test.skip()` function.
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 ## Hints
 Strings in JavaScript cannot be reversed directly so you're going to have to split it into something else first.. do the reversal and then join it back together into a string.