ref: Remove deprecated integrations option

[noahsmartin]

Remove this setting that is deprecated and removed in the v9 flag

#skip-changelog

Closes #6544

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.479%. Comparing base (e648312) to head (0e1f0ef).
⚠️ Report is 3 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #6492       +/-   ##
=============================================
- Coverage   85.485%   85.479%   -0.006%     
=============================================
  Files          451       451               
  Lines        27428     27424        -4     
  Branches     11934     11935        +1     
=============================================
- Hits         23447     23442        -5     
- Misses        3697      3937      +240     
+ Partials       284        45      -239     

Files with missing lines	Coverage Δ
SentryTestUtils/TestOptions.swift	100.000% <100.000%> (ø)
Sources/Sentry/SentryOptions.m	96.407% <ø> (-0.085%)	⬇️
Sources/Sentry/SentrySDKInternal.m	83.266% <ø> (-3.452%)	⬇️
Sources/Sentry/SentyOptionsInternal.m	99.543% <ø> (-0.017%)	⬇️

... and 42 files with indirect coverage changes

---

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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1195.38 ms	1218.21 ms	22.83 ms
Size	23.75 KiB	1.01 MiB	1016.24 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
748df9d	1231.63 ms	1259.47 ms	27.84 ms
13bc1aa	1244.04 ms	1262.89 ms	18.85 ms
aa0b738	1236.78 ms	1253.08 ms	16.31 ms
dba2de8	1231.45 ms	1251.88 ms	20.43 ms
9be5373	1215.92 ms	1239.44 ms	23.52 ms
ef2c9b3	1222.12 ms	1253.96 ms	31.84 ms
7bd90de	1233.48 ms	1249.47 ms	15.99 ms
53b722c	1222.33 ms	1244.90 ms	22.56 ms
a6f5396	1211.81 ms	1245.63 ms	33.82 ms
62f8d2a	1226.24 ms	1249.92 ms	23.67 ms

App size

Revision	Plain	With Sentry	Diff
748df9d	23.75 KiB	902.48 KiB	878.74 KiB
13bc1aa	23.75 KiB	908.40 KiB	884.65 KiB
aa0b738	23.74 KiB	872.75 KiB	849.00 KiB
dba2de8	23.75 KiB	969.25 KiB	945.50 KiB
9be5373	23.75 KiB	866.50 KiB	842.75 KiB
ef2c9b3	23.75 KiB	933.03 KiB	909.29 KiB
7bd90de	23.75 KiB	933.33 KiB	909.58 KiB
53b722c	23.75 KiB	906.08 KiB	882.33 KiB
a6f5396	23.75 KiB	989.12 KiB	965.38 KiB
62f8d2a	23.75 KiB	926.80 KiB	903.05 KiB

Previous results on branch: removeDeprecatedIntegrations

Startup times

Revision	Plain	With Sentry	Diff
2b2ee5a	1237.29 ms	1265.98 ms	28.69 ms
e207d9e	1237.60 ms	1271.82 ms	34.21 ms
75209a9	1217.91 ms	1248.78 ms	30.87 ms
ff29e12	1214.66 ms	1248.91 ms	34.25 ms
08c8d7a	1220.77 ms	1260.15 ms	39.38 ms
d35abd8	1219.20 ms	1258.71 ms	39.50 ms

App size

Revision	Plain	With Sentry	Diff
2b2ee5a	23.75 KiB	1.00 MiB	1005.77 KiB
e207d9e	23.75 KiB	1.01 MiB	1016.23 KiB
75209a9	23.75 KiB	1.00 MiB	1005.77 KiB
ff29e12	23.75 KiB	1.01 MiB	1006.39 KiB
08c8d7a	23.75 KiB	1.00 MiB	1002.23 KiB
d35abd8	23.75 KiB	1.01 MiB	1008.62 KiB

[itaybre]

LGTM

[philprime]

Thank you for the cleanup, left minor comments, but other than that LGTM