fix: rm unused options in IterativeVertexFinder.cc #8450

Job	Run time
detector-info	31s
list-open-prs	5s
env	1s
build (gcc, Release, nightly)	2m 21s
build (gcc, Debug, nightly)	2m 21s
build (clang, Release, nightly)	2m 22s
build (clang, Debug, nightly)	2m 23s
build (clang, Release, 24.04.0-stable, clang++)	2m 4s
build (clang, Release, 24.05.2-stable)	2m 23s
npsim-minbias (5x41, craterlake_5x41)	29s
npsim-minbias (10x100, craterlake)	1m 18s
npsim-gun-EcalLumiSpec (e, ip6_extended)	6m 59s
npsim-dis (10x100, 1000, craterlake_tracking_only)	30s
npsim-gun (pi, craterlake)	32s
npsim-minbias (18x275, craterlake_18x275)	39s
npsim-dis (18x275, 1000, craterlake_18x275)	42s
npsim-gun (e, craterlake)	39s
clang-tidy-iwyu	0s
llvm-cov	0s
eicrecon-test-plugins	0s
eicrecon-eicmkplugin	0s
eicrecon-two-stage-running	0s
eicrecon-benchmarks-plugins	0s
eicrecon-gun	0s
eicrecon-dis	0s
trigger-container	0s
build-docs	0s
get-docs-from-main	0s
get-docs-from-open-prs	0s
collect-docs	0s
deploy-docs	0s
eicrecon-gun-EcalLumiSpec	0s
	26m 19s

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