Remove non default coroutines options from Gradle tests

They don't have any effect anyway

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/CoroutinesIT.kt

@@ -16,83 +16,18 @@
 
 package org.jetbrains.kotlin.gradle
 
-import org.jetbrains.kotlin.gradle.util.getFileByName
-import org.jetbrains.kotlin.gradle.util.modify
 import org.junit.Test
 import java.io.File
 
 class CoroutinesIT : BaseGradleIT() {
-    companion object {
-        private const val LOCAL_PROPERTIES = "local.properties"
-        private const val GRADLE_PROPERTIES = "gradle.properties"
-    }
-
-    @Test
-    fun testCoroutinesProjectDSL() {
-        val project = Project("coroutinesProjectDSL")
-        project.build("assemble") {
-            assertSuccessful()
-            assertContains("-Xcoroutines=enable")
-        }
-
-        project.projectDir.getFileByName("build.gradle").modify {
-            it.replace("coroutines 'enable'", "coroutines 'error'")
-        }
-
-        project.build("assemble") {
-            assertFailed()
-            assertContains("-Xcoroutines=error")
-        }
-    }
-
-    @Test
-    fun testCoroutinesJvmEnabled() {
-        jvmProject.doTest("enable", GRADLE_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJvmWarn() {
-        jvmProject.doTest("warn", GRADLE_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJvmError() {
-        jvmProject.doTest("error", GRADLE_PROPERTIES)
-    }
-
     @Test
     fun testCoroutinesJvmDefault() {
-        jvmProject.doTest("warn", null)
-    }
-
-    @Test
-    fun testCoroutinesJvmLocalProperties() {
-        jvmProject.doTest("enable", LOCAL_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJsLocalProperties() {
-        jsProject.doTest("enable", LOCAL_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJsEnabled() {
-        jsProject.doTest("enable", GRADLE_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJsWarn() {
-        jsProject.doTest("warn", GRADLE_PROPERTIES)
-    }
-
-    @Test
-    fun testCoroutinesJsError() {
-        jsProject.doTest("error", GRADLE_PROPERTIES)
+        jvmProject.doTest("default", null)
     }
 
     @Test
     fun testCoroutinesJsDefault() {
-        jsProject.doTest("warn", null)
+        jsProject.doTest("default", null)
     }
 
     // todo: replace with project that actually uses coroutines after their syntax is finalized