Remove redundant word from development doc index

doc/development/README.md

@@ -59,8 +59,8 @@ description: 'Learn how to contribute to GitLab.'
   certain patterns to avoid
 - [Merge request performance guidelines](merge_request_performance_guidelines.md)
   for ensuring merge requests do not negatively impact GitLab performance
-- [Profiling](profiling.md) for profiling a URL, measuring performance using
-  Sherlock, or tracking down N+1 queries using Bullet
+- [Profiling](profiling.md) a URL, measuring performance using Sherlock, or
+  tracking down N+1 queries using Bullet
 
 ## Database guides