Revert "[K/N] Add SAM with receiver plugin"

This reverts commit a58e2459c6.

kotlin-native/build-tools/build.gradle.kts

@@ -12,28 +12,17 @@ plugins {
     // due to https://github.com/gradle/gradle/issues/1697.
     id("kotlin")
     groovy
-    `kotlin-dsl`
     `java-gradle-plugin`
 }
 
 buildscript {
     val rootBuildDirectory by extra(project.file("../.."))
 
-    repositories {
-        project.bootstrapKotlinRepo?.let {
-            maven(url = it)
-        }
-    }
-
     apply(from = rootBuildDirectory.resolve("kotlin-native/gradle/loadRootProperties.gradle"))
     dependencies {
         classpath(commonDependency("com.google.code.gson:gson"))
-        classpath("org.jetbrains.kotlin:kotlin-sam-with-receiver:${project.bootstrapKotlinVersion}")
     }
 }
-apply {
-    plugin("kotlin-sam-with-receiver")
-}
 
 val rootProperties = Properties().apply {
     project(":kotlin-native").projectDir.resolve("gradle.properties").reader().use(::load)