Remove useDetect7 option (#4717) #668

Job	Run time
Start	7s
Build integration tests	16s
Build Piper	1m 45s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 41s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 27s
Run integration tests ("TestCNBIntegrationNPMProject")	2m 6s
Run integration tests ("TestCNBIntegrationMultiImage")	2m 48s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 17s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 15s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 15s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 15s
Run integration tests ("TestGolangIntegration")	1m 47s
Run integration tests ("TestGradleIntegration")	1m 44s
Run integration tests ("TestMavenIntegration")	1m 46s
Run integration tests ("TestMTAIntegration")	1m 51s
Run integration tests ("TestTmsUploadIntegration")	52s
Run integration tests ("TestTmsExportIntegration")	54s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 15s
Finish	1s
	25m 22s

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