minor KnpLabs#1023 Update result_pager.md (tomsowerby)

This PR was merged into the 3.4.x-dev branch.

Discussion
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Quick update to the docs as I notice this method has been removed in v3.

Commits
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2e36702 Update result_pager.md

Author: acrobat

doc/result_pager.md

@@ -63,7 +63,3 @@ $paginator->hasPrevious();
 $paginator->fetchPrevious();
 ```
 
-If you want to retrieve the pagination links (available after the call to fetch):
-```php
-$paginator->getPagination();
-```