chore(editor): remove page block feature flag

[L-Sun]

No description provided.

[L-Sun]

• chore(core): remove template doc feature flag #10252
• chore(editor): remove page block feature flag #10251 👈 (View in Graphite)
• canary

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.21%. Comparing base (cedee0a) to head (e639f08).
Report is 2 commits behind head on canary.

Additional details and impacted files

@@           Coverage Diff           @@
##           canary   #10251   +/-   ##
=======================================
  Coverage   54.20%   54.21%           
=======================================
  Files        2337     2336    -1     
  Lines      107677   107676    -1     
  Branches    17796    17799    +3     
=======================================
+ Hits        58366    58372    +6     
+ Misses      47985    47978    -7     
  Partials     1326     1326           

Flag	Coverage Δ
server-test	78.42% <ø> (ø)
unittest	31.40% <40.00%> (+<0.01%)	⬆️

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[graphite-app]

Merge activity

• Feb 18, 4:21 AM EST: A user added this pull request to the Graphite merge queue.
• Feb 18, 4:38 AM EST: A user merged this pull request with the Graphite merge queue.