refactor: change build script

build.gradle.kts

@@ -2,7 +2,6 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
     kotlin("jvm") version "1.4.32"
-    application
 }
 
 group = "de.wulkanat"
@@ -23,10 +22,6 @@ tasks.test {
     useJUnit()
 }
 
-tasks.withType<KotlinCompile>() {
+tasks.withType<KotlinCompile> {
     kotlinOptions.jvmTarget = "11"
 }
-
-application {
-    mainClassName = "MainKt"
-}