[IDE] Drop coroutines KotlinFacetSettings.coroutineSupport

idea/idea-analysis/src/org/jetbrains/kotlin/idea/project/Platform.kt

@@ -136,18 +136,7 @@ fun Project.getLanguageVersionSettings(
         compilerSettings.additionalArgumentsAsList
     )
 
-    val extraLanguageFeatures = additionalArguments.configureLanguageFeatures(MessageCollector.NONE).apply {
-        configureCoroutinesSupport(
-            CoroutineSupport.byCompilerArguments(KotlinCommonCompilerArgumentsHolder.getInstance(this@getLanguageVersionSettings).settings),
-            languageVersion
-        )
-        if (isReleaseCoroutines != null) {
-            put(
-                LanguageFeature.ReleaseCoroutines,
-                if (isReleaseCoroutines) LanguageFeature.State.ENABLED else LanguageFeature.State.DISABLED
-            )
-        }
-    }
+    val extraLanguageFeatures = additionalArguments.configureLanguageFeatures(MessageCollector.NONE)
 
     val extraAnalysisFlags = additionalArguments.configureAnalysisFlags(MessageCollector.NONE).apply {
         if (javaTypeEnhancementState != null) put(JvmAnalysisFlags.javaTypeEnhancementState, javaTypeEnhancementState)
@@ -228,7 +217,6 @@ private fun Module.computeLanguageVersionSettings(): LanguageVersionSettings {
     }
 
     val languageFeatures = facetSettings?.mergedCompilerArguments?.configureLanguageFeatures(MessageCollector.NONE)?.apply {
-        configureCoroutinesSupport(facetSettings.coroutineSupport, languageVersion)
         configureMultiplatformSupport(facetSettings.targetPlatform?.idePlatformKind, this@computeLanguageVersionSettings)
     }.orEmpty()
 
@@ -281,18 +269,6 @@ private fun parseArguments(
     return platformKind.createArguments { parseCommandLineArguments(additionalArguments, this) }
 }
 
-fun MutableMap<LanguageFeature, LanguageFeature.State>.configureCoroutinesSupport(
-    coroutineSupport: LanguageFeature.State?,
-    languageVersion: LanguageVersion
-) {
-    val state = if (languageVersion >= LanguageVersion.KOTLIN_1_3) {
-        LanguageFeature.State.ENABLED
-    } else {
-        coroutineSupport ?: LanguageFeature.Coroutines.defaultState
-    }
-    put(LanguageFeature.Coroutines, state)
-}
-
 fun MutableMap<LanguageFeature, LanguageFeature.State>.configureMultiplatformSupport(
     platformKind: IdePlatformKind<*>?,
     module: Module?