Remove Unused Cache Settings From Forms

Problem/Motivation

The existing "Use the Patternkit Library Cache" and "Use the Patternkit Disk Render Cache" checkboxes on the Patternkit settings form (/admin/config/user-interface/patternkit) are no longer referenced anywhere in the module and have no effect on functionality. To avoid confusion, these settings should be removed.

Instead of these checkboxes, development settings and cache controls may be customized as described here.

Steps to reproduce

• Navigate to /admin/config/user-interface/patternkit
• Observe the presence of the mentioned cache checkboxes

Proposed resolution

• Remove the cache checkboxes from the settings form
• Update configuration to no longer include these settings

Remaining tasks

User interface changes

• The settings form no longer displays the cache setting checkboxes

API changes

None

Data model changes

• The exported Patternkit settings configuration no longer includes the cache settings