get rid of deprecated ZynqAdapter

src/main/scala/Fpga.scala

@@ -1,25 +0,0 @@
-package rocketchip
-
-import Chisel._
-import uncore.tilelink._
-import junctions._
-import cde.Parameters
-
-class ZynqAdapter(implicit val p: Parameters) extends Module
-    with HasTopLevelParameters {
-
-  val adapterParams = p.alterPartial({
-    case NastiKey => NastiParameters(
-      dataBits = 32,
-      addrBits = 32,
-      idBits = 12)
-    case TLId => "L1toL2"
-  })
-
-  val io = new Bundle {
-    val nasti = new NastiIO()(adapterParams).flip
-    val reset = Bool(OUTPUT)
-  }
-
-  require(false, "TODO reimplement using debug port, not HTIF")
-}