cubicweb-file #4943409 data attribute is fulltextindexed [validation pending]

This is a very old bug, but it really hurt recently.

priorityimportant
typebug
done in1.17.0
load0.100
load left0.000
closed by#9d06eb2190d9 [schema] remove full text index on File.data (closes #4943409)
patch[schema] remove full text index on File.data (closes #4943409) [applied]