Drop support for deprecated iosArm32 target

[twyatt]

https://kotl.in/native-targets-tiers

[github-actions]

Test Results

  96 files    96 suites   9s ⏱️
833 tests 824 ✔️   9 💤 0 ❌
850 runs  836 ✔️ 14 💤 0 ❌

Results for commit 902fdf8.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Merging #301 (dd262f0) into main (1c1547e) will decrease coverage by 25.14%.
Report is 211 commits behind head on main.
The diff coverage is 47.50%.

❗ Current head dd262f0 differs from pull request most recent head 902fdf8. Consider uploading reports for the commit 902fdf8 to get more accurate results

@@              Coverage Diff              @@
##               main     #301       +/-   ##
=============================================
- Coverage     94.44%   69.30%   -25.14%     
=============================================
  Files            13        9        -4     
  Lines           126      101       -25     
  Branches          8        2        -6     
=============================================
- Hits            119       70       -49     
- Misses            6       31       +25     
+ Partials          1        0        -1     

Files Changed	Coverage Δ
coroutines/src/commonMain/kotlin/flow/Combine.kt	0.00% <ø> (ø)
...tines/src/commonMain/kotlin/delay/DelayStrategy.kt	47.50% <47.50%> (ø)

... and 6 files with indirect coverage changes