[fuchsia] Remove stray launchpad references

These aren't needed anymore.

Change-Id: I266a24dc3fc5667ccb158d93ebf0dbb972f486b5
diff --git a/BUILD.gn b/BUILD.gn
index 6b0cae1..04a4ada 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -72,7 +72,6 @@
   ]
   public_deps = [
     "//zircon/public/lib/fdio",
-    "//zircon/public/lib/launchpad",
   ]
   configs += [ ":fuchsia" ]
 }
@@ -363,7 +362,6 @@
   ]
   public_deps = [
     "//zircon/public/lib/fdio",
-    "//zircon/public/lib/launchpad",
   ]
 }