[build] drop dead repositories

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

@@ -44,7 +44,6 @@ repositories {
     maven("https://cache-redirector.jetbrains.com/maven-central")
     mavenCentral()
     maven("https://kotlin.bintray.com/kotlinx")
-    maven("https://dl.bintray.com/kotlin/kotlin-dev")
     maven("https://cache-redirector.jetbrains.com/jcenter")
     jcenter()
 }

kotlin-native/build-tools/src/main/kotlin/org/jetbrains/kotlin/CopySamples.kt

@@ -58,7 +58,6 @@ open class CopySamples : Copy() {
     }
 
     private val replacements = listOf(
-        "https://dl.bintray.com/kotlin/kotlin-dev" to "https://cache-redirector.jetbrains.com/dl.bintray.com/kotlin/kotlin-dev",
         "https://dl.bintray.com/kotlin/kotlin-eap" to "https://cache-redirector.jetbrains.com/dl.bintray.com/kotlin/kotlin-eap",
         "https://dl.bintray.com/kotlin/ktor" to "https://cache-redirector.jetbrains.com/dl.bintray.com/kotlin/ktor",
         "https://plugins.gradle.org/m2" to "https://cache-redirector.jetbrains.com/plugins.gradle.org/m2",