remove blank issue template

[jdonszelmann]

r? @Noratrieb

So there are currently two blank issue templates. One called "Blank Issue" and one called "Blank issue". Wildly different, of course. It seems that one is auto generated by GitHub, while the other one has an explicit template for it. This removes the explicit one so there's only one "Blank [iI]ssue" in the list. Unfortunately, the only way to test if it works is merging this and finding out, but it seems obvious that it would work.

[m-ou-se]

@bors r+ rollup

[bors]

📌 Commit eefe320 has been approved by m-ou-se

It is now in the queue for this repository.

[bors]

⌛ Testing commit eefe320 with merge 3002af6...

[bors]

☀️ Test successful - checks-actions
Approved by: m-ou-se
Pushing 3002af6 to master...

[rust-timer]

Finished benchmarking commit (3002af6): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results (secondary 1.0%)

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%	[2.0%, 4.1%]	3
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-4.3%	[-4.3%, -4.3%]	1
All ❌✅ (primary)	-	-	0

Cycles

Results (secondary -3.0%)

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)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.0%	[-3.0%, -3.0%]	2
All ❌✅ (primary)	-	-	0

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 772.334s -> 772.86s (0.07%)
Artifact size: 342.01 MiB -> 342.03 MiB (0.01%)