Remove CI properties, this is not needed when publishing locally.

docs/nightly_build.md

@@ -42,7 +42,7 @@ Then you can run the following commands (which are also used in the file for [th
 
 ```sh
 git checkout develop
-./gradlew assembleGplayNightly appDistributionUploadGplayNightly $CI_GRADLE_ARG_PROPERTIES
+./gradlew assembleGplayNightly appDistributionUploadGplayNightly
 ```
 
 Then you can reset the change on the codebase.