tilelink2: move general-purpose code out of tilelink2 package

src/main/scala/uncore/tilelink2/package.scala

@@ -1,7 +1,7 @@
 package uncore
 
 import Chisel._
-import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}
+import diplomacy._
 
 package object tilelink2
 {
@@ -17,9 +17,4 @@ package object tilelink2
       if (s >= w) x else helper(s+s, x | (x << s)(w-1,0))
     helper(1, x)
   }
-
-  def sourceLine(sourceInfo: SourceInfo, prefix: String = " (", suffix: String = ")") = sourceInfo match {
-    case SourceLine(filename, line, col) => s"$prefix$filename:$line:$col$suffix"
-    case _ => ""
-  }
 }