Important: #92870 - Always use Fluid based page module
See forge#92870
Description
With forge#90348 a completely rewritten page module has been added as
a replacement for the
Page. As this replacement is stable
enough, the feature toggle to switch between the different implementations
has been removed.
Impact
The feature fluid is now always enabled. Extension authors
can therefore remove any check regarding this feature as it will always return
true.