build: remove unnecessary buildSrc directory

Author: lppedd

build.gradle.kts

@@ -4,7 +4,8 @@ import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
 
 plugins {
-    kotlin("multiplatform")
+    alias(libs.plugins.kotlinMultiplatform)
+    alias(libs.plugins.dokka)
     alias(libs.plugins.detekt)
     alias(libs.plugins.vanniktech)
     jacoco

buildSrc/build.gradle.kts

@@ -5,12 +5,10 @@ dokka = "2.1.0-Beta"
 vanniktech = "0.34.0"
 
 [plugins]
+kotlinMultiplatform = { id = "org.jetbrains.kotlin.multiplatform", version.ref = "kotlin" }
+dokka = { id = "org.jetbrains.dokka", version.ref = "dokka" }
 detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }
 vanniktech = { id = "com.vanniktech.maven.publish", version.ref = "vanniktech" }
 
 [libraries]
 detekt-formatting = { group = "io.gitlab.arturbosch.detekt", name = "detekt-formatting", version.ref = "detekt" }
-
-# Gradle plugins
-kotlin-plugin = { group = "org.jetbrains.kotlin", name = "kotlin-gradle-plugin", version.ref = "kotlin" }
-dokka-plugin = { group = "org.jetbrains.dokka", name = "dokka-gradle-plugin", version.ref = "dokka" }