diff --git a/samples/irs-demo/src/integration-test/kotlin/net/corda/irs/IRSDemoTest.kt b/samples/irs-demo/src/integration-test/kotlin/net/corda/irs/IRSDemoTest.kt
index 42c4597aee..ca9b841d9f 100644
--- a/samples/irs-demo/src/integration-test/kotlin/net/corda/irs/IRSDemoTest.kt
+++ b/samples/irs-demo/src/integration-test/kotlin/net/corda/irs/IRSDemoTest.kt
@@ -33,8 +33,7 @@ import rx.Observable
 import java.time.Duration
 import java.time.LocalDate
 
-class IRSDemoTest : IntegrationTestCategory {
-
+class IRSDemoTest {
     companion object {
         val log = loggerFor<IRSDemoTest>()
     }
diff --git a/samples/simm-valuation-demo/src/integration-test/kotlin/net/corda/vega/SimmValuationTest.kt b/samples/simm-valuation-demo/src/integration-test/kotlin/net/corda/vega/SimmValuationTest.kt
index a970dd7312..6c9c6cff74 100644
--- a/samples/simm-valuation-demo/src/integration-test/kotlin/net/corda/vega/SimmValuationTest.kt
+++ b/samples/simm-valuation-demo/src/integration-test/kotlin/net/corda/vega/SimmValuationTest.kt
@@ -17,7 +17,7 @@ import org.junit.Test
 import java.math.BigDecimal
 import java.time.LocalDate
 
-class SimmValuationTest : IntegrationTestCategory {
+class SimmValuationTest {
     private companion object {
         // SIMM demo can only currently handle one valuation date due to a lack of market data or a market data source.
         val valuationDate: LocalDate = LocalDate.parse("2016-06-06")
diff --git a/testing/test-utils/src/main/kotlin/net/corda/testing/IntegrationTestCategory.kt b/testing/test-utils/src/main/kotlin/net/corda/testing/IntegrationTestCategory.kt
deleted file mode 100644
index cea4389b47..0000000000
--- a/testing/test-utils/src/main/kotlin/net/corda/testing/IntegrationTestCategory.kt
+++ /dev/null
@@ -1,6 +0,0 @@
-package net.corda.testing
-
-/**
- * Marker interface for tests which are only run as part of the integration tests.
- */
-interface IntegrationTestCategory