Cleanup freeCompilerArgs (#52)

* Replace -Xopt-in with -opt-in

* Remove args

buildSrc/src/main/kotlin/ProjectExtensions.kt

@@ -59,15 +59,9 @@ inline fun <reified T : BaseExtension> Project.setupBase(
     (this as ExtensionAware).extensions.configure<KotlinJvmOptions> {
       jvmTarget = javaVersion.toString()
       freeCompilerArgs = listOf(
-        // https://kotlinlang.org/docs/compiler-reference.html#progressive
         "-progressive",
-        "-Xopt-in=kotlin.RequiresOptIn",
-        // Generate native Java 8 default interface methods.
-        "-Xjvm-default=all",
-        // Generate smaller bytecode by not generating runtime not-null assertions.
-        "-Xno-call-assertions",
-        "-Xno-param-assertions",
-        "-Xno-receiver-assertions"
+        "-opt-in=kotlin.RequiresOptIn",
+        "-Xjvm-default=all"
       )
     }
     packagingOptions.resources.excludes += setOf(