Remove not longer valid update script - pre-8.1 upgrade ....

[DeepDiver1975]

Description

This update script is no longer required. It was to upgrade a pre-8.1 owncloud

How Has This Been Tested?

🤖

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests

[codecov]

Codecov Report

Merging #33209 into master will increase coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #33209      +/-   ##
============================================
+ Coverage     64.16%   64.18%   +0.02%     
  Complexity    18700    18700              
============================================
  Files          1182     1181       -1     
  Lines         70374    70349      -25     
  Branches       1270     1270              
============================================
  Hits          45156    45156              
+ Misses        24848    24823      -25     
  Partials        370      370

Flag	Coverage Δ	Complexity Δ
#javascript	52.89% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	65.47% <ø> (+0.02%)	18700 <ø> (ø)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 41cd3ee...996b33c. Read the comment docs.

[PVince81]

👍 as discussed

[phil-davis]

Proposed backport in #35781