fix #89 - Completely remove obsolete options and functions

[hugosolar]

Fixes #89
Fixes #87

Description

This pull request completely remove a set of options from prior versions of this plugin. This options was causing error in some cases (#87 for example) and this options are no longer available in the new versions

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the master branch of the repository.
• My commit messages follow best practices.
• I added tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

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