Remove unused sardana code

As it was discussed in #66 (closed) @Oriolgarcia16 and @puiggaleix are linting the sardana code.

They have found several errors in the modules which are not used for more than a decade. I think it would be better to remove them from the codebase than fix them.

These are the modules:

• sardanaConfig
• scripts/upgrade/upgradeCLI.py
• scripts/upgrade/upgradeGUI.*
• scripts/upgrade/upgrade_utils.py
• scripts/upgrade/upgrade_sardana.py
• scripts/upgrade/res/*
• scripts/upgrade/from_01_to_02.py
• scripts/upgrade/from_02_to_03.py
• src/sardana/taurus/qt/qtgui/extra_macroexecutor/macroeditor.py
• test/*

Thank you in advance for your comments.