chore(CHANGELOG): Remove duplicate entry

Author: PLNech

CHANGELOG.md

@@ -11,19 +11,6 @@
 
 ## 3.20.0
 
-## 3.19.0
-* **AbstractClient:** Accept gzip Encoding ([#539](https://github.com/algolia/algoliasearch-client-android/issues/539)) ([691bc12](https://github.com/algolia/algoliasearch-client-android/commit/691bc12))
-* **offline:** Implement the collections for offline @Override methods ([f64f9f2](https://github.com/algolia/algoliasearch-client-android/commit/f64f9f2))
-* **release:** At this point I lost hope ([0667c44](https://github.com/algolia/algoliasearch-client-android/commit/0667c44))
-* **release:** Fix the release process ([a36508e](https://github.com/algolia/algoliasearch-client-android/commit/a36508e))
-* **release:** Fix the release process ([d008c49](https://github.com/algolia/algoliasearch-client-android/commit/d008c49))
-* **release:** Fix the release process ([dc843d7](https://github.com/algolia/algoliasearch-client-android/commit/dc843d7))
-* **release:** Revert sed empty string ([61b5587](https://github.com/algolia/algoliasearch-client-android/commit/61b5587))
-* **release:** Use system env for sonatype ([b3e096f](https://github.com/algolia/algoliasearch-client-android/commit/b3e096f))
-### Features
-* **custombackend:** Move Index to implement Searchable protocol ([#541](https://github.com/algolia/algoliasearch-client-android/issues/541)) ([713d2ce](https://github.com/algolia/algoliasearch-client-android/commit/713d2ce))
-* **fastlane:** Auto increment version based on deploy type ([a962792](https://github.com/algolia/algoliasearch-client-android/commit/a962792))
-
 ## 3.19.0
 * **AbstractClient:** Accept gzip Encoding ([#539](https://github.com/algolia/algoliasearch-client-android/issues/539)) ([691bc12](https://github.com/algolia/algoliasearch-client-android/commit/691bc12))
 * **release:** At this point I lost hope ([a73affd](https://github.com/algolia/algoliasearch-client-android/commit/a73affd))