chore(internal): remove unused or unnecessary Gradle imports (#687)

Author: stainless-app[bot]

buildSrc/src/main/kotlin/increase.kotlin.gradle.kts

@@ -1,6 +1,5 @@
 import com.diffplug.gradle.spotless.SpotlessExtension
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-import com.vanniktech.maven.publish.*
 
 plugins {
     id("increase.java")

buildSrc/src/main/kotlin/increase.publish.gradle.kts

@@ -1,10 +1,3 @@
-import org.gradle.api.publish.PublishingExtension
-import org.gradle.api.publish.maven.MavenPublication
-import org.gradle.kotlin.dsl.configure
-import org.gradle.kotlin.dsl.register
-import org.gradle.kotlin.dsl.get
-import com.vanniktech.maven.publish.JavaLibrary
-import com.vanniktech.maven.publish.JavadocJar
 import com.vanniktech.maven.publish.MavenPublishBaseExtension
 import com.vanniktech.maven.publish.SonatypeHost