delete: duplicated slice(5, 5) example

Author: danieldanielecki

data/blog/software-development/web-development/frontend/javascript/slice-vs-substring-vs-substr-complete-javascript-string-methods-comparison.mdx

@@ -110,10 +110,6 @@ console.log(str.slice(4));         // "Script"
 // Example 4: Extract single character
 console.log(str.slice(0, 1));      // "J"
 // Explanation: Start at 0, end before 1, so only index 0 is included
-
-// Example 5: Extract with same start and end
-console.log(str.slice(5, 5));      // "" (empty string)
-// Explanation: When start equals end, no characters are included (empty range)
 ```
 
 #### Negative Index