Remove release plugin

It doesn't work with multi-module projects properly.

build.gradle.kts

@@ -14,7 +14,6 @@ plugins {
 
     kotlin("multiplatform") version Versions.kotlin apply false
     id("kotlinx.benchmark") version Versions.kotlinBenchmark apply false
-    id("net.researchgate.release") version Versions.releasePlugin apply false
     id("org.jetbrains.dokka") version Versions.dokka apply false
     id("org.jetbrains.kotlin.plugin.allopen") version Versions.kotlin apply false
 }
@@ -37,16 +36,8 @@ allprojects {
 
 subprojects {
     plugins.withType<MavenPublishPlugin> {
-        apply(plugin = "net.researchgate.release")
         apply(plugin = "org.gradle.signing")
 
-        val afterReleaseBuild by tasks.existing(DefaultTask::class)
-        val publish by tasks.existing(Task::class)
-
-        afterReleaseBuild {
-            dependsOn(publish)
-        }
-
         plugins.withType<KotlinMultiplatformPluginWrapper> {
             apply(plugin = "org.jetbrains.dokka")
 

buildSrc/src/main/kotlin/Versions.kt

@@ -5,6 +5,5 @@ object Versions {
     const val kotlinCoroutines = "1.3.9"
     const val ktor = "1.4.0"
     const val logback = "1.2.3"
-    const val releasePlugin = "2.8.1"
     const val versionsPlugin = "0.29.0"
 }