rustdoc: Revert #104889

[GuillaumeGomez]

Reverts #104889.

I don't think I'll be able to finish #107000 on time unfortunately so to prevent #106373, better to revert it and to make it into the next release.

r? @notriddle

[notriddle]

@bors r+

[bors]

📌 Commit a22cd9c has been approved by notriddle

It is now in the queue for this repository.

[GuillaumeGomez]

Since it impacts perf, it can't be put into a rollup and we need it merged before tomorrow so let's give it a higher priority.

@bors rollup=never p=1

[bors]

⌛ Testing commit a22cd9c with merge 51d50ea...

[bors]

☀️ Test successful - checks-actions
Approved by: notriddle
Pushing 51d50ea to master...

[rust-timer]

Finished benchmarking commit (51d50ea): comparison URL.

Overall result: ✅ improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-4.4%	[-15.7%, -0.5%]	7
Improvements ✅ (secondary)	-1.5%	[-1.6%, -1.4%]	3
All ❌✅ (primary)	-4.4%	[-15.7%, -0.5%]	7

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	1.4%	[1.4%, 1.4%]	1
Improvements ✅ (primary)	-2.1%	[-3.3%, -1.2%]	3
Improvements ✅ (secondary)	-1.9%	[-2.0%, -1.7%]	2
All ❌✅ (primary)	-2.1%	[-3.3%, -1.2%]	3

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.7%	[2.7%, 2.7%]	1
Improvements ✅ (primary)	-6.5%	[-14.7%, -1.5%]	5
Improvements ✅ (secondary)	-2.3%	[-2.5%, -2.1%]	2
All ❌✅ (primary)	-6.5%	[-14.7%, -1.5%]	5