Remove unnecessary empty compiler option

kotlin-multiplatform-libsodium-generator/build.gradle.kts

@@ -26,8 +26,7 @@ dependencies {
 
 tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().all {
     kotlinOptions.freeCompilerArgs += listOf(
-        "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes",
-        ""
+        "-Xuse-experimental=kotlin.ExperimentalUnsignedTypes"
     )
 }