Remove unused import

Author: lauzadis

runtime/auth/http-auth-aws/common/test/aws/smithy/kotlin/runtime/http/auth/EndpointAuthTest.kt

@@ -7,7 +7,6 @@ package aws.smithy.kotlin.runtime.http.auth
 import aws.smithy.kotlin.runtime.auth.AuthOption
 import aws.smithy.kotlin.runtime.auth.AuthSchemeId
 import aws.smithy.kotlin.runtime.collections.attributesOf
-import kotlinx.coroutines.test.runTest
 import kotlin.test.Test
 import kotlin.test.assertEquals