Remove duplicate of CollectEntryPoints.scala

There's another more recent version of this file at
compiler/src/dotty/tools/dotc/transform/CollectEntryPoints.scala.

Author: smarter

compiler/src/dotty/tools/backend/jvm/CollectEntryPoints.scala

@@ -4,7 +4,7 @@ import dotty.tools.dotc.ast.tpd
 import dotty.tools.dotc.ast.Trees
 import dotty.tools.dotc
 import dotty.tools.dotc.core.Flags.{termFlagSet}
-import dotty.tools.dotc.transform.{Erasure, GenericSignatures}
+import dotty.tools.dotc.transform.{CollectEntryPoints, Erasure, GenericSignatures}
 import dotty.tools.dotc.transform.SymUtils._
 import java.io.{File => _}