Remove r8 dependency

Author: martinbonnin

gr8-plugin-common/build.gradle.kts

@@ -6,7 +6,6 @@ plugins {
 
 dependencies {
   compileOnly(libs.gradle.api)
-  implementation(libs.r8)
 }
 
 Librarian.module(project)

gradle/libs.versions.toml

@@ -1,6 +1,5 @@
 [libraries]
 gradle-api = "dev.gradleplugins:gradle-api:7.3" # for ArtifactTypeDefinition.ARTIFACT_TYPE_ATTRIBUTE
-r8 = "com.android.tools:r8:8.5.35"
 librarian = "com.gradleup.librarian:librarian-gradle-plugin:0.0.8-SNAPSHOT-ba3e33fb6601dae9ea75e1ef75aa9b46bf640b74"
 gr8-published = "com.gradleup:gr8-plugin:0.11.0-SNAPSHOT-ac9451b86ec13bc59a090a38585fa20b88eb072e"
 gradle-publish = "com.gradle.publish:plugin-publish-plugin:0.15.0"