Remove tools/jdk/jdk symbolic link creation

Skylark rules now depends completely on the external repository
to access the JDK tooling.

--
Change-Id: I48d461524d63d556bcd4af49f6ba2aecf1ed7068
Reviewed-on: https://bazel-review.googlesource.com/#/c/1500/
MOS_MIGRATED_REVID=95720688
diff --git a/tools/jdk/BUILD b/tools/jdk/BUILD
index 4bc736b..8e898c4 100644
--- a/tools/jdk/BUILD
+++ b/tools/jdk/BUILD
@@ -20,6 +20,16 @@
     srcs = ["//external:java"],
 )
 
+filegroup(
+    name = "jar",
+    srcs = ["//external:jar"],
+)
+
+filegroup(
+    name = "javac",
+    srcs = ["//external:javac"],
+)
+
 BOOTCLASS_JARS = [
     "rt.jar",
     "resources.jar",