Remove template section in workspace creation/update page

[raintygao]

Description

Remove template section in workspace creation/update page

Issues Resolved

Screenshot

Testing the changes

Check List

• All tests pass
  • yarn test:jest
  • yarn test:jest_integration
  • yarn test:ftr
• New functionality includes testing.
• New functionality has been documented.
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[codecov-commenter]

Codecov Report

Merging #73 (b611065) into workspace (8bacb1b) will increase coverage by 0.01%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##           workspace      #73      +/-   ##
=============================================
+ Coverage      65.70%   65.71%   +0.01%     
=============================================
  Files           3342     3341       -1     
  Lines          64533    64532       -1     
  Branches       10255    10255              
=============================================
+ Hits           42404    42410       +6     
+ Misses         19597    19564      -33     
- Partials        2532     2558      +26     

Flag	Coverage Δ
Linux_1	34.67% <ø> (?)
Linux_3	42.58% <ø> (+<0.01%)	⬆️
Windows_1	34.68% <ø> (-0.01%)	⬇️
Windows_2	54.47% <ø> (-0.01%)	⬇️
Windows_3	42.58% <ø> (-0.01%)	⬇️
Windows_4	34.73% <ø> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
src/plugins/dashboard/public/plugin.tsx	0.00% <ø> (ø)
src/plugins/discover/public/plugin.ts	1.86% <ø> (ø)

... and 12 files with indirect coverage changes

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