remove compatiblity trait for scala 2.11/2.12

Author: natansil

plugin/src/main/BUILD

@@ -3,7 +3,6 @@ load("//scala:scala.bzl", "scala_library", "scala_library_for_plugin_bootstrappi
 scala_library_for_plugin_bootstrapping(
     name = "dependency_analyzer",
     srcs = ["scala/io/github/retronym/dependencyanalyzer/DependencyAnalyzer.scala",
-            "scala_2_11/io/github/retronym/dependencyanalyzer/Compat.scala",
             ],
     resources = ["resources/scalac-plugin.xml"],
     visibility = ["//visibility:public"],

plugin/src/main/scala/io/github/retronym/dependencyanalyzer/DependencyAnalyzer.scala

@@ -1,12 +1,11 @@
 package plugin.src.main.scala.io.github.retronym.dependencyanalyzer
 
-import plugin.src.main.scala_2_11.io.github.retronym.dependencyanalyzer.Compat
 
 import scala.reflect.io.AbstractFile
 import scala.tools.nsc.plugins.{Plugin, PluginComponent}
 import scala.tools.nsc.{Global, Phase}
 
-class DependencyAnalyzer(val global: Global) extends Plugin with Compat {
+class DependencyAnalyzer(val global: Global) extends Plugin {
 
   val name = "dependency-analyzer"
   val description =