ref: Remove unused SentryCrashCString

[philipphofmann]

📜 Description

Remove unused SentryCrashCString including unused logic in the SentryCrashInstallation.

#skip-changelog

💡 Motivation and Context

Came up in #2785 (comment).

💚 How did you test it?

Unit tests and manually crashing the app in the sample app.

📝 Checklist

You have to check all boxes before merging:

• I reviewed the submitted code.
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[brustolin]

Always good to see a lot of code going away.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.172%. Comparing base (0589699) to head (0af4d7d).

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #4045       +/-   ##
=============================================
+ Coverage   91.093%   91.172%   +0.078%     
=============================================
  Files          608       607        -1     
  Lines        47540     47554       +14     
  Branches     17049     17080       +31     
=============================================
+ Hits         43306     43356       +50     
+ Misses        4164      4018      -146     
- Partials        70       180      +110     

Files	Coverage Δ
...entryCrash/Installations/SentryCrashInstallation.m	44.827% <ø> (+10.617%)	⬆️

... and 34 files with indirect coverage changes

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1227.02 ms	1247.46 ms	20.44 ms
Size	21.58 KiB	654.59 KiB	633.01 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
2affdbd	1224.29 ms	1248.06 ms	23.77 ms
5e66a38	1224.16 ms	1237.76 ms	13.60 ms
f801098	1225.41 ms	1237.45 ms	12.04 ms
ff09c7e	1244.86 ms	1246.68 ms	1.82 ms
f938d24	1223.26 ms	1242.12 ms	18.86 ms
1a4da1b	1222.14 ms	1239.50 ms	17.36 ms
8e4bc70	1229.18 ms	1240.86 ms	11.67 ms
324dc7b	1210.33 ms	1244.92 ms	34.59 ms
11b2ffa	1204.86 ms	1218.16 ms	13.31 ms
c00eafe	1253.04 ms	1256.41 ms	3.37 ms

App size

Revision	Plain	With Sentry	Diff
2affdbd	22.85 KiB	411.37 KiB	388.52 KiB
5e66a38	22.85 KiB	408.88 KiB	386.03 KiB
f801098	21.58 KiB	614.71 KiB	593.13 KiB
ff09c7e	20.76 KiB	427.77 KiB	407.00 KiB
f938d24	20.76 KiB	434.88 KiB	414.12 KiB
1a4da1b	21.58 KiB	418.33 KiB	396.75 KiB
8e4bc70	21.58 KiB	625.90 KiB	604.32 KiB
324dc7b	22.85 KiB	408.84 KiB	385.99 KiB
11b2ffa	22.85 KiB	412.67 KiB	389.82 KiB
c00eafe	20.76 KiB	432.88 KiB	412.12 KiB